Home / 83,545.20-115,281.72-47,737.54

Finding the Fourth Proportional to 83,545.20, 115,281.72 and 47,737.54

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Solution

The fourth proportional to 83,545.20, 115,281.72 and 47,737.54 is: 65,871.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,545.20 : 115,281.72 = 47,737.54 : x
  2. Step 2: Convert to fraction form
    83,545.20/115,281.72 = 47,737.54/x
  3. Step 3: Cross multiply
    83,545.20x = 115,281.72 × 47,737.54
  4. Step 4: Simplify right side
    83,545.20x = 5,503,265,719.77
  5. Step 5: Solve for x
    x = 5,503,265,719.77/83,545.20
  6. Step 6: Final answer
    x = 65,871.72

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1.5x scale

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.