Home / 87,291.50-120,463.08-49,566.56

Finding the Fourth Proportional to 87,291.50, 120,463.08 and 49,566.56

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Solution

The fourth proportional to 87,291.50, 120,463.08 and 49,566.56 is: 68,402.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,291.50 : 120,463.08 = 49,566.56 : x
  2. Step 2: Convert to fraction form
    87,291.50/120,463.08 = 49,566.56/x
  3. Step 3: Cross multiply
    87,291.50x = 120,463.08 × 49,566.56
  4. Step 4: Simplify right side
    87,291.50x = 5,970,940,482.60
  5. Step 5: Solve for x
    x = 5,970,940,482.60/87,291.50
  6. Step 6: Final answer
    x = 68,402.31

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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.