Home / 86,126.73-129,161.34-36,197.52

Finding the Fourth Proportional to 86,126.73, 129,161.34 and 36,197.52

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Solution

The fourth proportional to 86,126.73, 129,161.34 and 36,197.52 is: 54,284.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,126.73 : 129,161.34 = 36,197.52 : x
  2. Step 2: Convert to fraction form
    86,126.73/129,161.34 = 36,197.52/x
  3. Step 3: Cross multiply
    86,126.73x = 129,161.34 × 36,197.52
  4. Step 4: Simplify right side
    86,126.73x = 4,675,320,187.88
  5. Step 5: Solve for x
    x = 4,675,320,187.88/86,126.73
  6. Step 6: Final answer
    x = 54,284.19

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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.