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Finding the Fourth Proportional to 87,102.96, 120,201.24 and 47,358.96

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Solution

The fourth proportional to 87,102.96, 120,201.24 and 47,358.96 is: 65,354.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,102.96 : 120,201.24 = 47,358.96 : x
  2. Step 2: Convert to fraction form
    87,102.96/120,201.24 = 47,358.96/x
  3. Step 3: Cross multiply
    87,102.96x = 120,201.24 × 47,358.96
  4. Step 4: Simplify right side
    87,102.96x = 5,692,605,717.11
  5. Step 5: Solve for x
    x = 5,692,605,717.11/87,102.96
  6. Step 6: Final answer
    x = 65,354.91

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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.