Home / 83,541.46-115,293.32-47,730.70

Finding the Fourth Proportional to 83,541.46, 115,293.32 and 47,730.70

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Solution

The fourth proportional to 83,541.46, 115,293.32 and 47,730.70 is: 65,871.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,541.46 : 115,293.32 = 47,730.70 : x
  2. Step 2: Convert to fraction form
    83,541.46/115,293.32 = 47,730.70/x
  3. Step 3: Cross multiply
    83,541.46x = 115,293.32 × 47,730.70
  4. Step 4: Simplify right side
    83,541.46x = 5,503,031,221.86
  5. Step 5: Solve for x
    x = 5,503,031,221.86/83,541.46
  6. Step 6: Final answer
    x = 65,871.86

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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.