Home / 71,382.24-98,499.28-39,543.04

Finding the Fourth Proportional to 71,382.24, 98,499.28 and 39,543.04

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Solution

The fourth proportional to 71,382.24, 98,499.28 and 39,543.04 is: 54,564.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,382.24 : 98,499.28 = 39,543.04 : x
  2. Step 2: Convert to fraction form
    71,382.24/98,499.28 = 39,543.04/x
  3. Step 3: Cross multiply
    71,382.24x = 98,499.28 × 39,543.04
  4. Step 4: Simplify right side
    71,382.24x = 3,894,960,969.01
  5. Step 5: Solve for x
    x = 3,894,960,969.01/71,382.24
  6. Step 6: Final answer
    x = 54,564.85

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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.