Home / 74,789.94-112,188.33-30,393.66

Finding the Fourth Proportional to 74,789.94, 112,188.33 and 30,393.66

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Solution

The fourth proportional to 74,789.94, 112,188.33 and 30,393.66 is: 45,591.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,789.94 : 112,188.33 = 30,393.66 : x
  2. Step 2: Convert to fraction form
    74,789.94/112,188.33 = 30,393.66/x
  3. Step 3: Cross multiply
    74,789.94x = 112,188.33 × 30,393.66
  4. Step 4: Simplify right side
    74,789.94x = 3,409,813,957.99
  5. Step 5: Solve for x
    x = 3,409,813,957.99/74,789.94
  6. Step 6: Final answer
    x = 45,591.88

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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.