Home / 87,809.76-131,701.23-28,645.34

Finding the Fourth Proportional to 87,809.76, 131,701.23 and 28,645.34

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Solution

The fourth proportional to 87,809.76, 131,701.23 and 28,645.34 is: 42,963.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,809.76 : 131,701.23 = 28,645.34 : x
  2. Step 2: Convert to fraction form
    87,809.76/131,701.23 = 28,645.34/x
  3. Step 3: Cross multiply
    87,809.76x = 131,701.23 × 28,645.34
  4. Step 4: Simplify right side
    87,809.76x = 3,772,625,853.26
  5. Step 5: Solve for x
    x = 3,772,625,853.26/87,809.76
  6. Step 6: Final answer
    x = 42,963.63

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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.