Home / 66,132.38-99,187.62-21,759.68

Finding the Fourth Proportional to 66,132.38, 99,187.62 and 21,759.68

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Solution

The fourth proportional to 66,132.38, 99,187.62 and 21,759.68 is: 32,635.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,132.38 : 99,187.62 = 21,759.68 : x
  2. Step 2: Convert to fraction form
    66,132.38/99,187.62 = 21,759.68/x
  3. Step 3: Cross multiply
    66,132.38x = 99,187.62 × 21,759.68
  4. Step 4: Simplify right side
    66,132.38x = 2,158,290,871.16
  5. Step 5: Solve for x
    x = 2,158,290,871.16/66,132.38
  6. Step 6: Final answer
    x = 32,635.92

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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.