Home / 83,576.56-115,352.63-56,727.72

Finding the Fourth Proportional to 83,576.56, 115,352.63 and 56,727.72

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Solution

The fourth proportional to 83,576.56, 115,352.63 and 56,727.72 is: 78,295.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,576.56 : 115,352.63 = 56,727.72 : x
  2. Step 2: Convert to fraction form
    83,576.56/115,352.63 = 56,727.72/x
  3. Step 3: Cross multiply
    83,576.56x = 115,352.63 × 56,727.72
  4. Step 4: Simplify right side
    83,576.56x = 6,543,691,695.90
  5. Step 5: Solve for x
    x = 6,543,691,695.90/83,576.56
  6. Step 6: Final answer
    x = 78,295.78

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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.