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Finding the Fourth Proportional to 52,360.80, 72,255.78 and 28,487.57

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Solution

The fourth proportional to 52,360.80, 72,255.78 and 28,487.57 is: 39,311.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,360.80 : 72,255.78 = 28,487.57 : x
  2. Step 2: Convert to fraction form
    52,360.80/72,255.78 = 28,487.57/x
  3. Step 3: Cross multiply
    52,360.80x = 72,255.78 × 28,487.57
  4. Step 4: Simplify right side
    52,360.80x = 2,058,391,229.38
  5. Step 5: Solve for x
    x = 2,058,391,229.38/52,360.80
  6. Step 6: Final answer
    x = 39,311.68

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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.