Home / 40,711.29-60,976.70-31,281.90

Finding the Fourth Proportional to 40,711.29, 60,976.70 and 31,281.90

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Solution

The fourth proportional to 40,711.29, 60,976.70 and 31,281.90 is: 46,853.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,711.29 : 60,976.70 = 31,281.90 : x
  2. Step 2: Convert to fraction form
    40,711.29/60,976.70 = 31,281.90/x
  3. Step 3: Cross multiply
    40,711.29x = 60,976.70 × 31,281.90
  4. Step 4: Simplify right side
    40,711.29x = 1,907,467,031.73
  5. Step 5: Solve for x
    x = 1,907,467,031.73/40,711.29
  6. Step 6: Final answer
    x = 46,853.51

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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.