Home / 77,118.92-106,423.36-43,127.02

Finding the Fourth Proportional to 77,118.92, 106,423.36 and 43,127.02

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Solution

The fourth proportional to 77,118.92, 106,423.36 and 43,127.02 is: 59,514.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,118.92 : 106,423.36 = 43,127.02 : x
  2. Step 2: Convert to fraction form
    77,118.92/106,423.36 = 43,127.02/x
  3. Step 3: Cross multiply
    77,118.92x = 106,423.36 × 43,127.02
  4. Step 4: Simplify right side
    77,118.92x = 4,589,722,375.19
  5. Step 5: Solve for x
    x = 4,589,722,375.19/77,118.92
  6. Step 6: Final answer
    x = 59,514.87

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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.