Home / 45,621.72-68,432.64-31,537.44

Finding the Fourth Proportional to 45,621.72, 68,432.64 and 31,537.44

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Solution

The fourth proportional to 45,621.72, 68,432.64 and 31,537.44 is: 47,306.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,621.72 : 68,432.64 = 31,537.44 : x
  2. Step 2: Convert to fraction form
    45,621.72/68,432.64 = 31,537.44/x
  3. Step 3: Cross multiply
    45,621.72x = 68,432.64 × 31,537.44
  4. Step 4: Simplify right side
    45,621.72x = 2,158,190,278.04
  5. Step 5: Solve for x
    x = 2,158,190,278.04/45,621.72
  6. Step 6: Final answer
    x = 47,306.20

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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.