Home / 74,839.20-103,279.60-41,305.12

Finding the Fourth Proportional to 74,839.20, 103,279.60 and 41,305.12

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Solution

The fourth proportional to 74,839.20, 103,279.60 and 41,305.12 is: 57,001.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,839.20 : 103,279.60 = 41,305.12 : x
  2. Step 2: Convert to fraction form
    74,839.20/103,279.60 = 41,305.12/x
  3. Step 3: Cross multiply
    74,839.20x = 103,279.60 × 41,305.12
  4. Step 4: Simplify right side
    74,839.20x = 4,265,976,271.55
  5. Step 5: Solve for x
    x = 4,265,976,271.55/74,839.20
  6. Step 6: Final answer
    x = 57,001.90

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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.