Home / 87,021.82-130,569.94-36,432.66

Finding the Fourth Proportional to 87,021.82, 130,569.94 and 36,432.66

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Solution

The fourth proportional to 87,021.82, 130,569.94 and 36,432.66 is: 54,664.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,021.82 : 130,569.94 = 36,432.66 : x
  2. Step 2: Convert to fraction form
    87,021.82/130,569.94 = 36,432.66/x
  3. Step 3: Cross multiply
    87,021.82x = 130,569.94 × 36,432.66
  4. Step 4: Simplify right side
    87,021.82x = 4,757,010,230.24
  5. Step 5: Solve for x
    x = 4,757,010,230.24/87,021.82
  6. Step 6: Final answer
    x = 54,664.57

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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.