Home / 57,208.20-85,812.30-38,545.80

Finding the Fourth Proportional to 57,208.20, 85,812.30 and 38,545.80

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Solution

The fourth proportional to 57,208.20, 85,812.30 and 38,545.80 is: 57,818.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,208.20 : 85,812.30 = 38,545.80 : x
  2. Step 2: Convert to fraction form
    57,208.20/85,812.30 = 38,545.80/x
  3. Step 3: Cross multiply
    57,208.20x = 85,812.30 × 38,545.80
  4. Step 4: Simplify right side
    57,208.20x = 3,307,703,753.34
  5. Step 5: Solve for x
    x = 3,307,703,753.34/57,208.20
  6. Step 6: Final answer
    x = 57,818.70

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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.