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Finding the Fourth Proportional to 53,174.75, 79,755.95 and 13,728.76

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Solution

The fourth proportional to 53,174.75, 79,755.95 and 13,728.76 is: 20,591.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,174.75 : 79,755.95 = 13,728.76 : x
  2. Step 2: Convert to fraction form
    53,174.75/79,755.95 = 13,728.76/x
  3. Step 3: Cross multiply
    53,174.75x = 79,755.95 × 13,728.76
  4. Step 4: Simplify right side
    53,174.75x = 1,094,950,227.48
  5. Step 5: Solve for x
    x = 1,094,950,227.48/53,174.75
  6. Step 6: Final answer
    x = 20,591.55

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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.