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Finding the Fourth Proportional to 83,008.80, 124,545.60 and 30,423.60

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Solution

The fourth proportional to 83,008.80, 124,545.60 and 30,423.60 is: 45,647.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,008.80 : 124,545.60 = 30,423.60 : x
  2. Step 2: Convert to fraction form
    83,008.80/124,545.60 = 30,423.60/x
  3. Step 3: Cross multiply
    83,008.80x = 124,545.60 × 30,423.60
  4. Step 4: Simplify right side
    83,008.80x = 3,789,125,516.16
  5. Step 5: Solve for x
    x = 3,789,125,516.16/83,008.80
  6. Step 6: Final answer
    x = 45,647.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.