Home / 68,822.32-103,233.24-45,443.20

Finding the Fourth Proportional to 68,822.32, 103,233.24 and 45,443.20

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Solution

The fourth proportional to 68,822.32, 103,233.24 and 45,443.20 is: 68,164.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,822.32 : 103,233.24 = 45,443.20 : x
  2. Step 2: Convert to fraction form
    68,822.32/103,233.24 = 45,443.20/x
  3. Step 3: Cross multiply
    68,822.32x = 103,233.24 × 45,443.20
  4. Step 4: Simplify right side
    68,822.32x = 4,691,248,771.97
  5. Step 5: Solve for x
    x = 4,691,248,771.97/68,822.32
  6. Step 6: Final answer
    x = 68,164.64

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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.