Home / 75,842.16-113,004.78-67,565.04

Finding the Fourth Proportional to 75,842.16, 113,004.78 and 67,565.04

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Solution

The fourth proportional to 75,842.16, 113,004.78 and 67,565.04 is: 100,671.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,842.16 : 113,004.78 = 67,565.04 : x
  2. Step 2: Convert to fraction form
    75,842.16/113,004.78 = 67,565.04/x
  3. Step 3: Cross multiply
    75,842.16x = 113,004.78 × 67,565.04
  4. Step 4: Simplify right side
    75,842.16x = 7,635,172,480.89
  5. Step 5: Solve for x
    x = 7,635,172,480.89/75,842.16
  6. Step 6: Final answer
    x = 100,671.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.