Home / 83,575.56-115,351.25-56,726.72

Finding the Fourth Proportional to 83,575.56, 115,351.25 and 56,726.72

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Solution

The fourth proportional to 83,575.56, 115,351.25 and 56,726.72 is: 78,294.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,575.56 : 115,351.25 = 56,726.72 : x
  2. Step 2: Convert to fraction form
    83,575.56/115,351.25 = 56,726.72/x
  3. Step 3: Cross multiply
    83,575.56x = 115,351.25 × 56,726.72
  4. Step 4: Simplify right side
    83,575.56x = 6,543,497,200.01
  5. Step 5: Solve for x
    x = 6,543,497,200.01/83,575.56
  6. Step 6: Final answer
    x = 78,294.39

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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.