Home / 71,691.20-98,896-42,603.04

Finding the Fourth Proportional to 71,691.20, 98,896 and 42,603.04

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Solution

The fourth proportional to 71,691.20, 98,896 and 42,603.04 is: 58,769.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,691.20 : 98,896 = 42,603.04 : x
  2. Step 2: Convert to fraction form
    71,691.20/98,896 = 42,603.04/x
  3. Step 3: Cross multiply
    71,691.20x = 98,896 × 42,603.04
  4. Step 4: Simplify right side
    71,691.20x = 4,213,270,243.84
  5. Step 5: Solve for x
    x = 4,213,270,243.84/71,691.20
  6. Step 6: Final answer
    x = 58,769.70

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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.