Home / 45,648.20-68,472.30-40,809.80

Finding the Fourth Proportional to 45,648.20, 68,472.30 and 40,809.80

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Solution

The fourth proportional to 45,648.20, 68,472.30 and 40,809.80 is: 61,214.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,648.20 : 68,472.30 = 40,809.80 : x
  2. Step 2: Convert to fraction form
    45,648.20/68,472.30 = 40,809.80/x
  3. Step 3: Cross multiply
    45,648.20x = 68,472.30 × 40,809.80
  4. Step 4: Simplify right side
    45,648.20x = 2,794,340,868.54
  5. Step 5: Solve for x
    x = 2,794,340,868.54/45,648.20
  6. Step 6: Final answer
    x = 61,214.70

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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.