Home / 87,040.44-120,125.52-51,239.28

Finding the Fourth Proportional to 87,040.44, 120,125.52 and 51,239.28

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Solution

The fourth proportional to 87,040.44, 120,125.52 and 51,239.28 is: 70,715.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,040.44 : 120,125.52 = 51,239.28 : x
  2. Step 2: Convert to fraction form
    87,040.44/120,125.52 = 51,239.28/x
  3. Step 3: Cross multiply
    87,040.44x = 120,125.52 × 51,239.28
  4. Step 4: Simplify right side
    87,040.44x = 6,155,145,154.43
  5. Step 5: Solve for x
    x = 6,155,145,154.43/87,040.44
  6. Step 6: Final answer
    x = 70,715.92

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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.