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Finding the Fourth Proportional to 71,377, 98,500.26 and 43,082.68

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Solution

The fourth proportional to 71,377, 98,500.26 and 43,082.68 is: 59,454.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,377 : 98,500.26 = 43,082.68 : x
  2. Step 2: Convert to fraction form
    71,377/98,500.26 = 43,082.68/x
  3. Step 3: Cross multiply
    71,377x = 98,500.26 × 43,082.68
  4. Step 4: Simplify right side
    71,377x = 4,243,655,181.50
  5. Step 5: Solve for x
    x = 4,243,655,181.50/71,377
  6. Step 6: Final answer
    x = 59,454.10

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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.