Home / 99,717.26-137,612.41-54,396

Finding the Fourth Proportional to 99,717.26, 137,612.41 and 54,396

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Solution

The fourth proportional to 99,717.26, 137,612.41 and 54,396 is: 75,067.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,717.26 : 137,612.41 = 54,396 : x
  2. Step 2: Convert to fraction form
    99,717.26/137,612.41 = 54,396/x
  3. Step 3: Cross multiply
    99,717.26x = 137,612.41 × 54,396
  4. Step 4: Simplify right side
    99,717.26x = 7,485,564,518.37
  5. Step 5: Solve for x
    x = 7,485,564,518.37/99,717.26
  6. Step 6: Final answer
    x = 75,067.90

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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.