Home / 75,965.76-113,947.20-19,801.44

Finding the Fourth Proportional to 75,965.76, 113,947.20 and 19,801.44

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Solution

The fourth proportional to 75,965.76, 113,947.20 and 19,801.44 is: 29,701.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,965.76 : 113,947.20 = 19,801.44 : x
  2. Step 2: Convert to fraction form
    75,965.76/113,947.20 = 19,801.44/x
  3. Step 3: Cross multiply
    75,965.76x = 113,947.20 × 19,801.44
  4. Step 4: Simplify right side
    75,965.76x = 2,256,318,643.97
  5. Step 5: Solve for x
    x = 2,256,318,643.97/75,965.76
  6. Step 6: Final answer
    x = 29,701.78

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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.