Home / 75,756.20-104,482.17-66,661.92

Finding the Fourth Proportional to 75,756.20, 104,482.17 and 66,661.92

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Solution

The fourth proportional to 75,756.20, 104,482.17 and 66,661.92 is: 91,939.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,756.20 : 104,482.17 = 66,661.92 : x
  2. Step 2: Convert to fraction form
    75,756.20/104,482.17 = 66,661.92/x
  3. Step 3: Cross multiply
    75,756.20x = 104,482.17 × 66,661.92
  4. Step 4: Simplify right side
    75,756.20x = 6,964,982,057.97
  5. Step 5: Solve for x
    x = 6,964,982,057.97/75,756.20
  6. Step 6: Final answer
    x = 91,939.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.