Home / 99,580.20-137,418.94-54,258.56

Finding the Fourth Proportional to 99,580.20, 137,418.94 and 54,258.56

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Solution

The fourth proportional to 99,580.20, 137,418.94 and 54,258.56 is: 74,875.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,580.20 : 137,418.94 = 54,258.56 : x
  2. Step 2: Convert to fraction form
    99,580.20/137,418.94 = 54,258.56/x
  3. Step 3: Cross multiply
    99,580.20x = 137,418.94 × 54,258.56
  4. Step 4: Simplify right side
    99,580.20x = 7,456,153,529.83
  5. Step 5: Solve for x
    x = 7,456,153,529.83/99,580.20
  6. Step 6: Final answer
    x = 74,875.86

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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.