Home / 81,644.32-122,457.84-26,236

Finding the Fourth Proportional to 81,644.32, 122,457.84 and 26,236

Calculator

Solution

The fourth proportional to 81,644.32, 122,457.84 and 26,236 is: 39,351.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,644.32 : 122,457.84 = 26,236 : x
  2. Step 2: Convert to fraction form
    81,644.32/122,457.84 = 26,236/x
  3. Step 3: Cross multiply
    81,644.32x = 122,457.84 × 26,236
  4. Step 4: Simplify right side
    81,644.32x = 3,212,803,890.24
  5. Step 5: Solve for x
    x = 3,212,803,890.24/81,644.32
  6. Step 6: Final answer
    x = 39,351.22

Related Problems

Find fourth proportional to 40,822.16, 61,228.92 and 13,118
Half scale
Find fourth proportional to 163,288.64, 244,915.68 and 52,472
Double scale
Find fourth proportional to 81,645.32, 122,459.34 and 26,237
Similar ratio
Find fourth proportional to 122,466.48, 183,686.76 and 39,354
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.