Home / 87,341.93-131,040.56-31,180.79

Finding the Fourth Proportional to 87,341.93, 131,040.56 and 31,180.79

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Solution

The fourth proportional to 87,341.93, 131,040.56 and 31,180.79 is: 46,781.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,341.93 : 131,040.56 = 31,180.79 : x
  2. Step 2: Convert to fraction form
    87,341.93/131,040.56 = 31,180.79/x
  3. Step 3: Cross multiply
    87,341.93x = 131,040.56 × 31,180.79
  4. Step 4: Simplify right side
    87,341.93x = 4,085,947,371.74
  5. Step 5: Solve for x
    x = 4,085,947,371.74/87,341.93
  6. Step 6: Final answer
    x = 46,781.05

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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.