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Finding the Fourth Proportional to 71,160.52, 98,201.84 and 38,895.80

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Solution

The fourth proportional to 71,160.52, 98,201.84 and 38,895.80 is: 53,676.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,160.52 : 98,201.84 = 38,895.80 : x
  2. Step 2: Convert to fraction form
    71,160.52/98,201.84 = 38,895.80/x
  3. Step 3: Cross multiply
    71,160.52x = 98,201.84 × 38,895.80
  4. Step 4: Simplify right side
    71,160.52x = 3,819,639,128.27
  5. Step 5: Solve for x
    x = 3,819,639,128.27/71,160.52
  6. Step 6: Final answer
    x = 53,676.38

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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.