Home / 68,035.20-102,038.22-21,282

Finding the Fourth Proportional to 68,035.20, 102,038.22 and 21,282

Calculator

Solution

The fourth proportional to 68,035.20, 102,038.22 and 21,282 is: 31,918.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,035.20 : 102,038.22 = 21,282 : x
  2. Step 2: Convert to fraction form
    68,035.20/102,038.22 = 21,282/x
  3. Step 3: Cross multiply
    68,035.20x = 102,038.22 × 21,282
  4. Step 4: Simplify right side
    68,035.20x = 2,171,577,398.04
  5. Step 5: Solve for x
    x = 2,171,577,398.04/68,035.20
  6. Step 6: Final answer
    x = 31,918.44

Related Problems

Find fourth proportional to 34,017.60, 51,019.11 and 10,641
Half scale
Find fourth proportional to 136,070.40, 204,076.44 and 42,564
Double scale
Find fourth proportional to 68,036.20, 102,039.72 and 21,283
Similar ratio
Find fourth proportional to 102,052.80, 153,057.33 and 31,923
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.