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Finding the Fourth Proportional to 71,384.67, 98,505.39 and 39,552.87

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Solution

The fourth proportional to 71,384.67, 98,505.39 and 39,552.87 is: 54,579.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,384.67 : 98,505.39 = 39,552.87 : x
  2. Step 2: Convert to fraction form
    71,384.67/98,505.39 = 39,552.87/x
  3. Step 3: Cross multiply
    71,384.67x = 98,505.39 × 39,552.87
  4. Step 4: Simplify right side
    71,384.67x = 3,896,170,884.97
  5. Step 5: Solve for x
    x = 3,896,170,884.97/71,384.67
  6. Step 6: Final answer
    x = 54,579.94

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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.