Home / 66,499.20-99,748.80-33,321.60

Finding the Fourth Proportional to 66,499.20, 99,748.80 and 33,321.60

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Solution

The fourth proportional to 66,499.20, 99,748.80 and 33,321.60 is: 49,982.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,499.20 : 99,748.80 = 33,321.60 : x
  2. Step 2: Convert to fraction form
    66,499.20/99,748.80 = 33,321.60/x
  3. Step 3: Cross multiply
    66,499.20x = 99,748.80 × 33,321.60
  4. Step 4: Simplify right side
    66,499.20x = 3,323,789,614.08
  5. Step 5: Solve for x
    x = 3,323,789,614.08/66,499.20
  6. Step 6: Final answer
    x = 49,982.40

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Similar ratio
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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.