Home / 78,934.92-108,933-43,127.16

Finding the Fourth Proportional to 78,934.92, 108,933 and 43,127.16

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Solution

The fourth proportional to 78,934.92, 108,933 and 43,127.16 is: 59,517.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,934.92 : 108,933 = 43,127.16 : x
  2. Step 2: Convert to fraction form
    78,934.92/108,933 = 43,127.16/x
  3. Step 3: Cross multiply
    78,934.92x = 108,933 × 43,127.16
  4. Step 4: Simplify right side
    78,934.92x = 4,697,970,920.28
  5. Step 5: Solve for x
    x = 4,697,970,920.28/78,934.92
  6. Step 6: Final answer
    x = 59,517.02

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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.