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Finding the Fourth Proportional to 69,449.76, 95,833.82 and 38,817.20

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Solution

The fourth proportional to 69,449.76, 95,833.82 and 38,817.20 is: 53,563.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,449.76 : 95,833.82 = 38,817.20 : x
  2. Step 2: Convert to fraction form
    69,449.76/95,833.82 = 38,817.20/x
  3. Step 3: Cross multiply
    69,449.76x = 95,833.82 × 38,817.20
  4. Step 4: Simplify right side
    69,449.76x = 3,720,000,557.70
  5. Step 5: Solve for x
    x = 3,720,000,557.70/69,449.76
  6. Step 6: Final answer
    x = 53,563.91

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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.