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Finding the Fourth Proportional to 69,157.50, 95,446.43 and 38,948.72

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Solution

The fourth proportional to 69,157.50, 95,446.43 and 38,948.72 is: 53,754.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,157.50 : 95,446.43 = 38,948.72 : x
  2. Step 2: Convert to fraction form
    69,157.50/95,446.43 = 38,948.72/x
  3. Step 3: Cross multiply
    69,157.50x = 95,446.43 × 38,948.72
  4. Step 4: Simplify right side
    69,157.50x = 3,717,516,277.07
  5. Step 5: Solve for x
    x = 3,717,516,277.07/69,157.50
  6. Step 6: Final answer
    x = 53,754.35

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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.