Home / 74,631.74-102,959.10-49,105.26

Finding the Fourth Proportional to 74,631.74, 102,959.10 and 49,105.26

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Solution

The fourth proportional to 74,631.74, 102,959.10 and 49,105.26 is: 67,743.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,631.74 : 102,959.10 = 49,105.26 : x
  2. Step 2: Convert to fraction form
    74,631.74/102,959.10 = 49,105.26/x
  3. Step 3: Cross multiply
    74,631.74x = 102,959.10 × 49,105.26
  4. Step 4: Simplify right side
    74,631.74x = 5,055,833,374.87
  5. Step 5: Solve for x
    x = 5,055,833,374.87/74,631.74
  6. Step 6: Final answer
    x = 67,743.75

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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.