Home / 75,946.28-113,857.92-31,606.20

Finding the Fourth Proportional to 75,946.28, 113,857.92 and 31,606.20

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Solution

The fourth proportional to 75,946.28, 113,857.92 and 31,606.20 is: 47,383.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,946.28 : 113,857.92 = 31,606.20 : x
  2. Step 2: Convert to fraction form
    75,946.28/113,857.92 = 31,606.20/x
  3. Step 3: Cross multiply
    75,946.28x = 113,857.92 × 31,606.20
  4. Step 4: Simplify right side
    75,946.28x = 3,598,616,191.10
  5. Step 5: Solve for x
    x = 3,598,616,191.10/75,946.28
  6. Step 6: Final answer
    x = 47,383.71

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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.