Home / 66,860.44-100,287.92-38,760.32

Finding the Fourth Proportional to 66,860.44, 100,287.92 and 38,760.32

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Solution

The fourth proportional to 66,860.44, 100,287.92 and 38,760.32 is: 58,138.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,860.44 : 100,287.92 = 38,760.32 : x
  2. Step 2: Convert to fraction form
    66,860.44/100,287.92 = 38,760.32/x
  3. Step 3: Cross multiply
    66,860.44x = 100,287.92 × 38,760.32
  4. Step 4: Simplify right side
    66,860.44x = 3,887,192,218.96
  5. Step 5: Solve for x
    x = 3,887,192,218.96/66,860.44
  6. Step 6: Final answer
    x = 58,138.90

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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.