Home / 77,219.20-115,839.84-24,629.28

Finding the Fourth Proportional to 77,219.20, 115,839.84 and 24,629.28

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Solution

The fourth proportional to 77,219.20, 115,839.84 and 24,629.28 is: 36,947.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,219.20 : 115,839.84 = 24,629.28 : x
  2. Step 2: Convert to fraction form
    77,219.20/115,839.84 = 24,629.28/x
  3. Step 3: Cross multiply
    77,219.20x = 115,839.84 × 24,629.28
  4. Step 4: Simplify right side
    77,219.20x = 2,853,051,854.52
  5. Step 5: Solve for x
    x = 2,853,051,854.52/77,219.20
  6. Step 6: Final answer
    x = 36,947.44

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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.