Home / 66,661.68-100,034.28-35,517.36

Finding the Fourth Proportional to 66,661.68, 100,034.28 and 35,517.36

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Solution

The fourth proportional to 66,661.68, 100,034.28 and 35,517.36 is: 53,298.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,661.68 : 100,034.28 = 35,517.36 : x
  2. Step 2: Convert to fraction form
    66,661.68/100,034.28 = 35,517.36/x
  3. Step 3: Cross multiply
    66,661.68x = 100,034.28 × 35,517.36
  4. Step 4: Simplify right side
    66,661.68x = 3,552,953,535.10
  5. Step 5: Solve for x
    x = 3,552,953,535.10/66,661.68
  6. Step 6: Final answer
    x = 53,298.29

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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.