Home / 66,225.38-99,335.84-28,785.43

Finding the Fourth Proportional to 66,225.38, 99,335.84 and 28,785.43

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Solution

The fourth proportional to 66,225.38, 99,335.84 and 28,785.43 is: 43,177.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,225.38 : 99,335.84 = 28,785.43 : x
  2. Step 2: Convert to fraction form
    66,225.38/99,335.84 = 28,785.43/x
  3. Step 3: Cross multiply
    66,225.38x = 99,335.84 × 28,785.43
  4. Step 4: Simplify right side
    66,225.38x = 2,859,424,372.13
  5. Step 5: Solve for x
    x = 2,859,424,372.13/66,225.38
  6. Step 6: Final answer
    x = 43,177.17

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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.