Home / 83,530.45-124,996.37-72,324.45

Finding the Fourth Proportional to 83,530.45, 124,996.37 and 72,324.45

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Solution

The fourth proportional to 83,530.45, 124,996.37 and 72,324.45 is: 108,227.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,530.45 : 124,996.37 = 72,324.45 : x
  2. Step 2: Convert to fraction form
    83,530.45/124,996.37 = 72,324.45/x
  3. Step 3: Cross multiply
    83,530.45x = 124,996.37 × 72,324.45
  4. Step 4: Simplify right side
    83,530.45x = 9,040,293,251.86
  5. Step 5: Solve for x
    x = 9,040,293,251.86/83,530.45
  6. Step 6: Final answer
    x = 108,227.52

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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.