Home / 79,127.13-109,198.50-45,141.15

Finding the Fourth Proportional to 79,127.13, 109,198.50 and 45,141.15

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Solution

The fourth proportional to 79,127.13, 109,198.50 and 45,141.15 is: 62,296.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,127.13 : 109,198.50 = 45,141.15 : x
  2. Step 2: Convert to fraction form
    79,127.13/109,198.50 = 45,141.15/x
  3. Step 3: Cross multiply
    79,127.13x = 109,198.50 × 45,141.15
  4. Step 4: Simplify right side
    79,127.13x = 4,929,345,868.28
  5. Step 5: Solve for x
    x = 4,929,345,868.28/79,127.13
  6. Step 6: Final answer
    x = 62,296.53

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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.