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Finding the Fourth Proportional to 36,348.60, 54,530.10 and 30,545.40

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Solution

The fourth proportional to 36,348.60, 54,530.10 and 30,545.40 is: 45,824.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,348.60 : 54,530.10 = 30,545.40 : x
  2. Step 2: Convert to fraction form
    36,348.60/54,530.10 = 30,545.40/x
  3. Step 3: Cross multiply
    36,348.60x = 54,530.10 × 30,545.40
  4. Step 4: Simplify right side
    36,348.60x = 1,665,643,716.54
  5. Step 5: Solve for x
    x = 1,665,643,716.54/36,348.60
  6. Step 6: Final answer
    x = 45,824.15

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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.