Home / 86,531.57-129,791.22-23,355.30

Finding the Fourth Proportional to 86,531.57, 129,791.22 and 23,355.30

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Solution

The fourth proportional to 86,531.57, 129,791.22 and 23,355.30 is: 35,031.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,531.57 : 129,791.22 = 23,355.30 : x
  2. Step 2: Convert to fraction form
    86,531.57/129,791.22 = 23,355.30/x
  3. Step 3: Cross multiply
    86,531.57x = 129,791.22 × 23,355.30
  4. Step 4: Simplify right side
    86,531.57x = 3,031,312,250.17
  5. Step 5: Solve for x
    x = 3,031,312,250.17/86,531.57
  6. Step 6: Final answer
    x = 35,031.29

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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.