Home / 87,369.29-120,569.00-49,643.54

Finding the Fourth Proportional to 87,369.29, 120,569.00 and 49,643.54

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Solution

The fourth proportional to 87,369.29, 120,569.00 and 49,643.54 is: 68,507.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,369.29 : 120,569.00 = 49,643.54 : x
  2. Step 2: Convert to fraction form
    87,369.29/120,569.00 = 49,643.54/x
  3. Step 3: Cross multiply
    87,369.29x = 120,569.00 × 49,643.54
  4. Step 4: Simplify right side
    87,369.29x = 5,985,471,123.20
  5. Step 5: Solve for x
    x = 5,985,471,123.20/87,369.29
  6. Step 6: Final answer
    x = 68,507.73

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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.