Home / 90,568.13-124,989.48-54,766.94

Finding the Fourth Proportional to 90,568.13, 124,989.48 and 54,766.94

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Solution

The fourth proportional to 90,568.13, 124,989.48 and 54,766.94 is: 75,581.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,568.13 : 124,989.48 = 54,766.94 : x
  2. Step 2: Convert to fraction form
    90,568.13/124,989.48 = 54,766.94/x
  3. Step 3: Cross multiply
    90,568.13x = 124,989.48 × 54,766.94
  4. Step 4: Simplify right side
    90,568.13x = 6,845,290,726.84
  5. Step 5: Solve for x
    x = 6,845,290,726.84/90,568.13
  6. Step 6: Final answer
    x = 75,581.68

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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.