Home / 38,453.20-57,679.80-36,780.40

Finding the Fourth Proportional to 38,453.20, 57,679.80 and 36,780.40

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Solution

The fourth proportional to 38,453.20, 57,679.80 and 36,780.40 is: 55,170.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,453.20 : 57,679.80 = 36,780.40 : x
  2. Step 2: Convert to fraction form
    38,453.20/57,679.80 = 36,780.40/x
  3. Step 3: Cross multiply
    38,453.20x = 57,679.80 × 36,780.40
  4. Step 4: Simplify right side
    38,453.20x = 2,121,486,115.92
  5. Step 5: Solve for x
    x = 2,121,486,115.92/38,453.20
  6. Step 6: Final answer
    x = 55,170.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.