Home / 87,341.54-130,882.43-45,165.31

Finding the Fourth Proportional to 87,341.54, 130,882.43 and 45,165.31

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Solution

The fourth proportional to 87,341.54, 130,882.43 and 45,165.31 is: 67,680.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,341.54 : 130,882.43 = 45,165.31 : x
  2. Step 2: Convert to fraction form
    87,341.54/130,882.43 = 45,165.31/x
  3. Step 3: Cross multiply
    87,341.54x = 130,882.43 × 45,165.31
  4. Step 4: Simplify right side
    87,341.54x = 5,911,345,310.21
  5. Step 5: Solve for x
    x = 5,911,345,310.21/87,341.54
  6. Step 6: Final answer
    x = 67,680.80

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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.