Home / 87,374.52-120,572.87-53,439.84

Finding the Fourth Proportional to 87,374.52, 120,572.87 and 53,439.84

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Solution

The fourth proportional to 87,374.52, 120,572.87 and 53,439.84 is: 73,744.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,374.52 : 120,572.87 = 53,439.84 : x
  2. Step 2: Convert to fraction form
    87,374.52/120,572.87 = 53,439.84/x
  3. Step 3: Cross multiply
    87,374.52x = 120,572.87 × 53,439.84
  4. Step 4: Simplify right side
    87,374.52x = 6,443,394,613.94
  5. Step 5: Solve for x
    x = 6,443,394,613.94/87,374.52
  6. Step 6: Final answer
    x = 73,744.55

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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.