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Finding the Fourth Proportional to 60,363.57, 90,545.37 and 20,920.71

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Solution

The fourth proportional to 60,363.57, 90,545.37 and 20,920.71 is: 31,381.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,363.57 : 90,545.37 = 20,920.71 : x
  2. Step 2: Convert to fraction form
    60,363.57/90,545.37 = 20,920.71/x
  3. Step 3: Cross multiply
    60,363.57x = 90,545.37 × 20,920.71
  4. Step 4: Simplify right side
    60,363.57x = 1,894,273,427.61
  5. Step 5: Solve for x
    x = 1,894,273,427.61/60,363.57
  6. Step 6: Final answer
    x = 31,381.07

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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.