Home / 71,432.10-98,577.50-39,166.05

Finding the Fourth Proportional to 71,432.10, 98,577.50 and 39,166.05

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Solution

The fourth proportional to 71,432.10, 98,577.50 and 39,166.05 is: 54,049.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,432.10 : 98,577.50 = 39,166.05 : x
  2. Step 2: Convert to fraction form
    71,432.10/98,577.50 = 39,166.05/x
  3. Step 3: Cross multiply
    71,432.10x = 98,577.50 × 39,166.05
  4. Step 4: Simplify right side
    71,432.10x = 3,860,891,098.04
  5. Step 5: Solve for x
    x = 3,860,891,098.04/71,432.10
  6. Step 6: Final answer
    x = 54,049.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.