Home / 83,731.86-115,529.13-49,726.08

Finding the Fourth Proportional to 83,731.86, 115,529.13 and 49,726.08

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Solution

The fourth proportional to 83,731.86, 115,529.13 and 49,726.08 is: 68,609.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,731.86 : 115,529.13 = 49,726.08 : x
  2. Step 2: Convert to fraction form
    83,731.86/115,529.13 = 49,726.08/x
  3. Step 3: Cross multiply
    83,731.86x = 115,529.13 × 49,726.08
  4. Step 4: Simplify right side
    83,731.86x = 5,744,810,760.71
  5. Step 5: Solve for x
    x = 5,744,810,760.71/83,731.86
  6. Step 6: Final answer
    x = 68,609.62

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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.