Home / 90,569.13-124,990.86-54,767.94

Finding the Fourth Proportional to 90,569.13, 124,990.86 and 54,767.94

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Solution

The fourth proportional to 90,569.13, 124,990.86 and 54,767.94 is: 75,583.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,569.13 : 124,990.86 = 54,767.94 : x
  2. Step 2: Convert to fraction form
    90,569.13/124,990.86 = 54,767.94/x
  3. Step 3: Cross multiply
    90,569.13x = 124,990.86 × 54,767.94
  4. Step 4: Simplify right side
    90,569.13x = 6,845,491,921.03
  5. Step 5: Solve for x
    x = 6,845,491,921.03/90,569.13
  6. Step 6: Final answer
    x = 75,583.06

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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.