Home / 99,921.43-137,887.46-54,600.97

Finding the Fourth Proportional to 99,921.43, 137,887.46 and 54,600.97

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Solution

The fourth proportional to 99,921.43, 137,887.46 and 54,600.97 is: 75,347.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,921.43 : 137,887.46 = 54,600.97 : x
  2. Step 2: Convert to fraction form
    99,921.43/137,887.46 = 54,600.97/x
  3. Step 3: Cross multiply
    99,921.43x = 137,887.46 × 54,600.97
  4. Step 4: Simplify right side
    99,921.43x = 7,528,789,219.54
  5. Step 5: Solve for x
    x = 7,528,789,219.54/99,921.43
  6. Step 6: Final answer
    x = 75,347.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.