Home / 66,544.40-99,816.60-27,129.80

Finding the Fourth Proportional to 66,544.40, 99,816.60 and 27,129.80

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Solution

The fourth proportional to 66,544.40, 99,816.60 and 27,129.80 is: 40,694.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,544.40 : 99,816.60 = 27,129.80 : x
  2. Step 2: Convert to fraction form
    66,544.40/99,816.60 = 27,129.80/x
  3. Step 3: Cross multiply
    66,544.40x = 99,816.60 × 27,129.80
  4. Step 4: Simplify right side
    66,544.40x = 2,708,004,394.68
  5. Step 5: Solve for x
    x = 2,708,004,394.68/66,544.40
  6. Step 6: Final answer
    x = 40,694.70

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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.