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Finding the Fourth Proportional to 69,221.72, 95,523.90 and 39,008.72

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Solution

The fourth proportional to 69,221.72, 95,523.90 and 39,008.72 is: 53,830.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,221.72 : 95,523.90 = 39,008.72 : x
  2. Step 2: Convert to fraction form
    69,221.72/95,523.90 = 39,008.72/x
  3. Step 3: Cross multiply
    69,221.72x = 95,523.90 × 39,008.72
  4. Step 4: Simplify right side
    69,221.72x = 3,726,265,068.41
  5. Step 5: Solve for x
    x = 3,726,265,068.41/69,221.72
  6. Step 6: Final answer
    x = 53,830.87

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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.