Home / 89,929.20-124,101.59-49,642.95

Finding the Fourth Proportional to 89,929.20, 124,101.59 and 49,642.95

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Solution

The fourth proportional to 89,929.20, 124,101.59 and 49,642.95 is: 68,506.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,929.20 : 124,101.59 = 49,642.95 : x
  2. Step 2: Convert to fraction form
    89,929.20/124,101.59 = 49,642.95/x
  3. Step 3: Cross multiply
    89,929.20x = 124,101.59 × 49,642.95
  4. Step 4: Simplify right side
    89,929.20x = 6,160,769,027.29
  5. Step 5: Solve for x
    x = 6,160,769,027.29/89,929.20
  6. Step 6: Final answer
    x = 68,506.88

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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.