Home / 53,129.38-73,318.55-29,255.99

Finding the Fourth Proportional to 53,129.38, 73,318.55 and 29,255.99

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Solution

The fourth proportional to 53,129.38, 73,318.55 and 29,255.99 is: 40,373.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,129.38 : 73,318.55 = 29,255.99 : x
  2. Step 2: Convert to fraction form
    53,129.38/73,318.55 = 29,255.99/x
  3. Step 3: Cross multiply
    53,129.38x = 73,318.55 × 29,255.99
  4. Step 4: Simplify right side
    53,129.38x = 2,145,006,765.61
  5. Step 5: Solve for x
    x = 2,145,006,765.61/53,129.38
  6. Step 6: Final answer
    x = 40,373.27

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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.