Home / 45,775.20-68,662.80-38,863.20

Finding the Fourth Proportional to 45,775.20, 68,662.80 and 38,863.20

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Solution

The fourth proportional to 45,775.20, 68,662.80 and 38,863.20 is: 58,294.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,775.20 : 68,662.80 = 38,863.20 : x
  2. Step 2: Convert to fraction form
    45,775.20/68,662.80 = 38,863.20/x
  3. Step 3: Cross multiply
    45,775.20x = 68,662.80 × 38,863.20
  4. Step 4: Simplify right side
    45,775.20x = 2,668,456,128.96
  5. Step 5: Solve for x
    x = 2,668,456,128.96/45,775.20
  6. Step 6: Final answer
    x = 58,294.80

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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.