Home / 75,945.28-113,959.04-31,602.56

Finding the Fourth Proportional to 75,945.28, 113,959.04 and 31,602.56

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Solution

The fourth proportional to 75,945.28, 113,959.04 and 31,602.56 is: 47,420.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,945.28 : 113,959.04 = 31,602.56 : x
  2. Step 2: Convert to fraction form
    75,945.28/113,959.04 = 31,602.56/x
  3. Step 3: Cross multiply
    75,945.28x = 113,959.04 × 31,602.56
  4. Step 4: Simplify right side
    75,945.28x = 3,601,397,399.14
  5. Step 5: Solve for x
    x = 3,601,397,399.14/75,945.28
  6. Step 6: Final answer
    x = 47,420.95

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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.