Home / 75,335.27-103,959.05-45,121.86

Finding the Fourth Proportional to 75,335.27, 103,959.05 and 45,121.86

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Solution

The fourth proportional to 75,335.27, 103,959.05 and 45,121.86 is: 62,266.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,335.27 : 103,959.05 = 45,121.86 : x
  2. Step 2: Convert to fraction form
    75,335.27/103,959.05 = 45,121.86/x
  3. Step 3: Cross multiply
    75,335.27x = 103,959.05 × 45,121.86
  4. Step 4: Simplify right side
    75,335.27x = 4,690,825,474.22
  5. Step 5: Solve for x
    x = 4,690,825,474.22/75,335.27
  6. Step 6: Final answer
    x = 62,266.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.