Home / 75,124.91-103,669.17-41,132.78

Finding the Fourth Proportional to 75,124.91, 103,669.17 and 41,132.78

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Solution

The fourth proportional to 75,124.91, 103,669.17 and 41,132.78 is: 56,761.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,124.91 : 103,669.17 = 41,132.78 : x
  2. Step 2: Convert to fraction form
    75,124.91/103,669.17 = 41,132.78/x
  3. Step 3: Cross multiply
    75,124.91x = 103,669.17 × 41,132.78
  4. Step 4: Simplify right side
    75,124.91x = 4,264,200,644.05
  5. Step 5: Solve for x
    x = 4,264,200,644.05/75,124.91
  6. Step 6: Final answer
    x = 56,761.48

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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.