Home / 83,338.34-124,981.56-27,921.38

Finding the Fourth Proportional to 83,338.34, 124,981.56 and 27,921.38

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Solution

The fourth proportional to 83,338.34, 124,981.56 and 27,921.38 is: 41,873.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,338.34 : 124,981.56 = 27,921.38 : x
  2. Step 2: Convert to fraction form
    83,338.34/124,981.56 = 27,921.38/x
  3. Step 3: Cross multiply
    83,338.34x = 124,981.56 × 27,921.38
  4. Step 4: Simplify right side
    83,338.34x = 3,489,657,004.85
  5. Step 5: Solve for x
    x = 3,489,657,004.85/83,338.34
  6. Step 6: Final answer
    x = 41,873.37

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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.