Home / 45,463.78-68,186.35-28,589.05

Finding the Fourth Proportional to 45,463.78, 68,186.35 and 28,589.05

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Solution

The fourth proportional to 45,463.78, 68,186.35 and 28,589.05 is: 42,877.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,463.78 : 68,186.35 = 28,589.05 : x
  2. Step 2: Convert to fraction form
    45,463.78/68,186.35 = 28,589.05/x
  3. Step 3: Cross multiply
    45,463.78x = 68,186.35 × 28,589.05
  4. Step 4: Simplify right side
    45,463.78x = 1,949,383,016.19
  5. Step 5: Solve for x
    x = 1,949,383,016.19/45,463.78
  6. Step 6: Final answer
    x = 42,877.72

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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.