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Finding the Fourth Proportional to 66,672.30, 100,123.65 and 35,568.30

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Solution

The fourth proportional to 66,672.30, 100,123.65 and 35,568.30 is: 53,413.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,672.30 : 100,123.65 = 35,568.30 : x
  2. Step 2: Convert to fraction form
    66,672.30/100,123.65 = 35,568.30/x
  3. Step 3: Cross multiply
    66,672.30x = 100,123.65 × 35,568.30
  4. Step 4: Simplify right side
    66,672.30x = 3,561,228,020.30
  5. Step 5: Solve for x
    x = 3,561,228,020.30/66,672.30
  6. Step 6: Final answer
    x = 53,413.91

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1.5x scale

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.