Home / 74,958.30-103,456.89-48,134.70

Finding the Fourth Proportional to 74,958.30, 103,456.89 and 48,134.70

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Solution

The fourth proportional to 74,958.30, 103,456.89 and 48,134.70 is: 66,435.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,958.30 : 103,456.89 = 48,134.70 : x
  2. Step 2: Convert to fraction form
    74,958.30/103,456.89 = 48,134.70/x
  3. Step 3: Cross multiply
    74,958.30x = 103,456.89 × 48,134.70
  4. Step 4: Simplify right side
    74,958.30x = 4,979,866,363.08
  5. Step 5: Solve for x
    x = 4,979,866,363.08/74,958.30
  6. Step 6: Final answer
    x = 66,435.16

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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.