Home / 87,442.62-120,670.83-49,719.18

Finding the Fourth Proportional to 87,442.62, 120,670.83 and 49,719.18

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Solution

The fourth proportional to 87,442.62, 120,670.83 and 49,719.18 is: 68,612.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,442.62 : 120,670.83 = 49,719.18 : x
  2. Step 2: Convert to fraction form
    87,442.62/120,670.83 = 49,719.18/x
  3. Step 3: Cross multiply
    87,442.62x = 120,670.83 × 49,719.18
  4. Step 4: Simplify right side
    87,442.62x = 5,999,654,717.52
  5. Step 5: Solve for x
    x = 5,999,654,717.52/87,442.62
  6. Step 6: Final answer
    x = 68,612.48

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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.