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Finding the Fourth Proportional to 53,937.60, 80,906.40 and 52,123.20

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Solution

The fourth proportional to 53,937.60, 80,906.40 and 52,123.20 is: 78,184.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,937.60 : 80,906.40 = 52,123.20 : x
  2. Step 2: Convert to fraction form
    53,937.60/80,906.40 = 52,123.20/x
  3. Step 3: Cross multiply
    53,937.60x = 80,906.40 × 52,123.20
  4. Step 4: Simplify right side
    53,937.60x = 4,217,100,468.48
  5. Step 5: Solve for x
    x = 4,217,100,468.48/53,937.60
  6. Step 6: Final answer
    x = 78,184.80

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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.