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Finding the Fourth Proportional to 87,635.67, 120,937.28 and 47,349.42

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Solution

The fourth proportional to 87,635.67, 120,937.28 and 47,349.42 is: 65,342.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,635.67 : 120,937.28 = 47,349.42 : x
  2. Step 2: Convert to fraction form
    87,635.67/120,937.28 = 47,349.42/x
  3. Step 3: Cross multiply
    87,635.67x = 120,937.28 × 47,349.42
  4. Step 4: Simplify right side
    87,635.67x = 5,726,309,827.63
  5. Step 5: Solve for x
    x = 5,726,309,827.63/87,635.67
  6. Step 6: Final answer
    x = 65,342.23

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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.