Home / 87,090.41-130,414.03-57,418.22

Finding the Fourth Proportional to 87,090.41, 130,414.03 and 57,418.22

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Solution

The fourth proportional to 87,090.41, 130,414.03 and 57,418.22 is: 85,981.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,090.41 : 130,414.03 = 57,418.22 : x
  2. Step 2: Convert to fraction form
    87,090.41/130,414.03 = 57,418.22/x
  3. Step 3: Cross multiply
    87,090.41x = 130,414.03 × 57,418.22
  4. Step 4: Simplify right side
    87,090.41x = 7,488,141,022.20
  5. Step 5: Solve for x
    x = 7,488,141,022.20/87,090.41
  6. Step 6: Final answer
    x = 85,981.24

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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.