Home / 72,717.13-109,010.08-50,540.95

Finding the Fourth Proportional to 72,717.13, 109,010.08 and 50,540.95

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Solution

The fourth proportional to 72,717.13, 109,010.08 and 50,540.95 is: 75,765.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,717.13 : 109,010.08 = 50,540.95 : x
  2. Step 2: Convert to fraction form
    72,717.13/109,010.08 = 50,540.95/x
  3. Step 3: Cross multiply
    72,717.13x = 109,010.08 × 50,540.95
  4. Step 4: Simplify right side
    72,717.13x = 5,509,473,002.78
  5. Step 5: Solve for x
    x = 5,509,473,002.78/72,717.13
  6. Step 6: Final answer
    x = 75,765.82

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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.