Home / 87,451.79-120,682.91-49,726.04

Finding the Fourth Proportional to 87,451.79, 120,682.91 and 49,726.04

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Solution

The fourth proportional to 87,451.79, 120,682.91 and 49,726.04 is: 68,621.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,451.79 : 120,682.91 = 49,726.04 : x
  2. Step 2: Convert to fraction form
    87,451.79/120,682.91 = 49,726.04/x
  3. Step 3: Cross multiply
    87,451.79x = 120,682.91 × 49,726.04
  4. Step 4: Simplify right side
    87,451.79x = 6,001,082,730.88
  5. Step 5: Solve for x
    x = 6,001,082,730.88/87,451.79
  6. Step 6: Final answer
    x = 68,621.62

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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.