Home / 66,381.94-99,572.92-38,660.50

Finding the Fourth Proportional to 66,381.94, 99,572.92 and 38,660.50

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Solution

The fourth proportional to 66,381.94, 99,572.92 and 38,660.50 is: 57,990.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,381.94 : 99,572.92 = 38,660.50 : x
  2. Step 2: Convert to fraction form
    66,381.94/99,572.92 = 38,660.50/x
  3. Step 3: Cross multiply
    66,381.94x = 99,572.92 × 38,660.50
  4. Step 4: Simplify right side
    66,381.94x = 3,849,538,873.66
  5. Step 5: Solve for x
    x = 3,849,538,873.66/66,381.94
  6. Step 6: Final answer
    x = 57,990.76

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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.