Home / 66,120.44-99,195.23-21,760.79

Finding the Fourth Proportional to 66,120.44, 99,195.23 and 21,760.79

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Solution

The fourth proportional to 66,120.44, 99,195.23 and 21,760.79 is: 32,645.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,120.44 : 99,195.23 = 21,760.79 : x
  2. Step 2: Convert to fraction form
    66,120.44/99,195.23 = 21,760.79/x
  3. Step 3: Cross multiply
    66,120.44x = 99,195.23 × 21,760.79
  4. Step 4: Simplify right side
    66,120.44x = 2,158,566,127.46
  5. Step 5: Solve for x
    x = 2,158,566,127.46/66,120.44
  6. Step 6: Final answer
    x = 32,645.98

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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.