Home / 75,949.28-113,965.04-31,606.56

Finding the Fourth Proportional to 75,949.28, 113,965.04 and 31,606.56

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Solution

The fourth proportional to 75,949.28, 113,965.04 and 31,606.56 is: 47,426.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,949.28 : 113,965.04 = 31,606.56 : x
  2. Step 2: Convert to fraction form
    75,949.28/113,965.04 = 31,606.56/x
  3. Step 3: Cross multiply
    75,949.28x = 113,965.04 × 31,606.56
  4. Step 4: Simplify right side
    75,949.28x = 3,602,042,874.66
  5. Step 5: Solve for x
    x = 3,602,042,874.66/75,949.28
  6. Step 6: Final answer
    x = 47,426.95

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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.