Home / 75,640.38-113,498.84-31,298.95

Finding the Fourth Proportional to 75,640.38, 113,498.84 and 31,298.95

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Solution

The fourth proportional to 75,640.38, 113,498.84 and 31,298.95 is: 46,964.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,640.38 : 113,498.84 = 31,298.95 : x
  2. Step 2: Convert to fraction form
    75,640.38/113,498.84 = 31,298.95/x
  3. Step 3: Cross multiply
    75,640.38x = 113,498.84 × 31,298.95
  4. Step 4: Simplify right side
    75,640.38x = 3,552,394,518.22
  5. Step 5: Solve for x
    x = 3,552,394,518.22/75,640.38
  6. Step 6: Final answer
    x = 46,964.26

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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.