Home / 87,581.42-120,735.87-62,387.18

Finding the Fourth Proportional to 87,581.42, 120,735.87 and 62,387.18

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Solution

The fourth proportional to 87,581.42, 120,735.87 and 62,387.18 is: 86,004.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,581.42 : 120,735.87 = 62,387.18 : x
  2. Step 2: Convert to fraction form
    87,581.42/120,735.87 = 62,387.18/x
  3. Step 3: Cross multiply
    87,581.42x = 120,735.87 × 62,387.18
  4. Step 4: Simplify right side
    87,581.42x = 7,532,370,454.15
  5. Step 5: Solve for x
    x = 7,532,370,454.15/87,581.42
  6. Step 6: Final answer
    x = 86,004.21

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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.