Home / 87,422.90-130,773.49-66,203.53

Finding the Fourth Proportional to 87,422.90, 130,773.49 and 66,203.53

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Solution

The fourth proportional to 87,422.90, 130,773.49 and 66,203.53 is: 99,032.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,422.90 : 130,773.49 = 66,203.53 : x
  2. Step 2: Convert to fraction form
    87,422.90/130,773.49 = 66,203.53/x
  3. Step 3: Cross multiply
    87,422.90x = 130,773.49 × 66,203.53
  4. Step 4: Simplify right side
    87,422.90x = 8,657,666,175.98
  5. Step 5: Solve for x
    x = 8,657,666,175.98/87,422.90
  6. Step 6: Final answer
    x = 99,032.02

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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.