Home / 65,077.20-89,805.60-36,781.92

Finding the Fourth Proportional to 65,077.20, 89,805.60 and 36,781.92

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Solution

The fourth proportional to 65,077.20, 89,805.60 and 36,781.92 is: 50,758.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,077.20 : 89,805.60 = 36,781.92 : x
  2. Step 2: Convert to fraction form
    65,077.20/89,805.60 = 36,781.92/x
  3. Step 3: Cross multiply
    65,077.20x = 89,805.60 × 36,781.92
  4. Step 4: Simplify right side
    65,077.20x = 3,303,222,394.75
  5. Step 5: Solve for x
    x = 3,303,222,394.75/65,077.20
  6. Step 6: Final answer
    x = 50,758.52

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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.