Home / 87,261.60-130,864.65-28,083.48

Finding the Fourth Proportional to 87,261.60, 130,864.65 and 28,083.48

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Solution

The fourth proportional to 87,261.60, 130,864.65 and 28,083.48 is: 42,116.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,261.60 : 130,864.65 = 28,083.48 : x
  2. Step 2: Convert to fraction form
    87,261.60/130,864.65 = 28,083.48/x
  3. Step 3: Cross multiply
    87,261.60x = 130,864.65 × 28,083.48
  4. Step 4: Simplify right side
    87,261.60x = 3,675,134,780.98
  5. Step 5: Solve for x
    x = 3,675,134,780.98/87,261.60
  6. Step 6: Final answer
    x = 42,116.29

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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.