Home / 89,610-134,415-31,242

Finding the Fourth Proportional to 89,610, 134,415 and 31,242

Calculator

Solution

The fourth proportional to 89,610, 134,415 and 31,242 is: 46,863

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,610 : 134,415 = 31,242 : x
  2. Step 2: Convert to fraction form
    89,610/134,415 = 31,242/x
  3. Step 3: Cross multiply
    89,610x = 134,415 × 31,242
  4. Step 4: Simplify right side
    89,610x = 4,199,393,430
  5. Step 5: Solve for x
    x = 4,199,393,430/89,610
  6. Step 6: Final answer
    x = 46,863

Related Problems

Find fourth proportional to 44,805, 67,207.50 and 15,621
Half scale
Find fourth proportional to 179,220, 268,830 and 62,484
Double scale
Find fourth proportional to 89,611, 134,416.50 and 31,243
Similar ratio
Find fourth proportional to 134,415, 201,622.50 and 46,863
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.