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Finding the Fourth Proportional to 71,250.92, 98,259 and 53,141.64

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Solution

The fourth proportional to 71,250.92, 98,259 and 53,141.64 is: 73,285.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,250.92 : 98,259 = 53,141.64 : x
  2. Step 2: Convert to fraction form
    71,250.92/98,259 = 53,141.64/x
  3. Step 3: Cross multiply
    71,250.92x = 98,259 × 53,141.64
  4. Step 4: Simplify right side
    71,250.92x = 5,221,644,404.76
  5. Step 5: Solve for x
    x = 5,221,644,404.76/71,250.92
  6. Step 6: Final answer
    x = 73,285.29

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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.