Home / 87,092.60-120,195.72-53,102.96

Finding the Fourth Proportional to 87,092.60, 120,195.72 and 53,102.96

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Solution

The fourth proportional to 87,092.60, 120,195.72 and 53,102.96 is: 73,286.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,092.60 : 120,195.72 = 53,102.96 : x
  2. Step 2: Convert to fraction form
    87,092.60/120,195.72 = 53,102.96/x
  3. Step 3: Cross multiply
    87,092.60x = 120,195.72 × 53,102.96
  4. Step 4: Simplify right side
    87,092.60x = 6,382,748,511.33
  5. Step 5: Solve for x
    x = 6,382,748,511.33/87,092.60
  6. Step 6: Final answer
    x = 73,286.92

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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.