Home / 77,161.30-115,753.04-23,857.43

Finding the Fourth Proportional to 77,161.30, 115,753.04 and 23,857.43

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Solution

The fourth proportional to 77,161.30, 115,753.04 and 23,857.43 is: 35,789.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,161.30 : 115,753.04 = 23,857.43 : x
  2. Step 2: Convert to fraction form
    77,161.30/115,753.04 = 23,857.43/x
  3. Step 3: Cross multiply
    77,161.30x = 115,753.04 × 23,857.43
  4. Step 4: Simplify right side
    77,161.30x = 2,761,570,278.83
  5. Step 5: Solve for x
    x = 2,761,570,278.83/77,161.30
  6. Step 6: Final answer
    x = 35,789.58

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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.