Home / 87,878.24-121,272-48,134.24

Finding the Fourth Proportional to 87,878.24, 121,272 and 48,134.24

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Solution

The fourth proportional to 87,878.24, 121,272 and 48,134.24 is: 66,425.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,878.24 : 121,272 = 48,134.24 : x
  2. Step 2: Convert to fraction form
    87,878.24/121,272 = 48,134.24/x
  3. Step 3: Cross multiply
    87,878.24x = 121,272 × 48,134.24
  4. Step 4: Simplify right side
    87,878.24x = 5,837,335,553.28
  5. Step 5: Solve for x
    x = 5,837,335,553.28/87,878.24
  6. Step 6: Final answer
    x = 66,425.27

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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.