Home / 66,729.62-100,082.90-31,194.16

Finding the Fourth Proportional to 66,729.62, 100,082.90 and 31,194.16

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Solution

The fourth proportional to 66,729.62, 100,082.90 and 31,194.16 is: 46,785.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,729.62 : 100,082.90 = 31,194.16 : x
  2. Step 2: Convert to fraction form
    66,729.62/100,082.90 = 31,194.16/x
  3. Step 3: Cross multiply
    66,729.62x = 100,082.90 × 31,194.16
  4. Step 4: Simplify right side
    66,729.62x = 3,122,001,995.86
  5. Step 5: Solve for x
    x = 3,122,001,995.86/66,729.62
  6. Step 6: Final answer
    x = 46,785.85

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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.