Home / 74,865.11-103,304.31-49,420.73

Finding the Fourth Proportional to 74,865.11, 103,304.31 and 49,420.73

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Solution

The fourth proportional to 74,865.11, 103,304.31 and 49,420.73 is: 68,194.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,865.11 : 103,304.31 = 49,420.73 : x
  2. Step 2: Convert to fraction form
    74,865.11/103,304.31 = 49,420.73/x
  3. Step 3: Cross multiply
    74,865.11x = 103,304.31 × 49,420.73
  4. Step 4: Simplify right side
    74,865.11x = 5,105,374,763.27
  5. Step 5: Solve for x
    x = 5,105,374,763.27/74,865.11
  6. Step 6: Final answer
    x = 68,194.31

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1.5x scale

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.