Home / 45,753.12-68,624.16-20,766.64

Finding the Fourth Proportional to 45,753.12, 68,624.16 and 20,766.64

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Solution

The fourth proportional to 45,753.12, 68,624.16 and 20,766.64 is: 31,147.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,753.12 : 68,624.16 = 20,766.64 : x
  2. Step 2: Convert to fraction form
    45,753.12/68,624.16 = 20,766.64/x
  3. Step 3: Cross multiply
    45,753.12x = 68,624.16 × 20,766.64
  4. Step 4: Simplify right side
    45,753.12x = 1,425,093,226.02
  5. Step 5: Solve for x
    x = 1,425,093,226.02/45,753.12
  6. Step 6: Final answer
    x = 31,147.45

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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.