Home / 71,184.20-98,236.25-39,355.15

Finding the Fourth Proportional to 71,184.20, 98,236.25 and 39,355.15

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Solution

The fourth proportional to 71,184.20, 98,236.25 and 39,355.15 is: 54,311.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,184.20 : 98,236.25 = 39,355.15 : x
  2. Step 2: Convert to fraction form
    71,184.20/98,236.25 = 39,355.15/x
  3. Step 3: Cross multiply
    71,184.20x = 98,236.25 × 39,355.15
  4. Step 4: Simplify right side
    71,184.20x = 3,866,101,666.23
  5. Step 5: Solve for x
    x = 3,866,101,666.23/71,184.20
  6. Step 6: Final answer
    x = 54,311.24

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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.