Home / 74,932.70-112,399.05-45,335.30

Finding the Fourth Proportional to 74,932.70, 112,399.05 and 45,335.30

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Solution

The fourth proportional to 74,932.70, 112,399.05 and 45,335.30 is: 68,002.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,932.70 : 112,399.05 = 45,335.30 : x
  2. Step 2: Convert to fraction form
    74,932.70/112,399.05 = 45,335.30/x
  3. Step 3: Cross multiply
    74,932.70x = 112,399.05 × 45,335.30
  4. Step 4: Simplify right side
    74,932.70x = 5,095,644,651.47
  5. Step 5: Solve for x
    x = 5,095,644,651.47/74,932.70
  6. Step 6: Final answer
    x = 68,002.95

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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.