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Finding the Fourth Proportional to 51,297.32, 76,942.13 and 18,017.68

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Solution

The fourth proportional to 51,297.32, 76,942.13 and 18,017.68 is: 27,025.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,297.32 : 76,942.13 = 18,017.68 : x
  2. Step 2: Convert to fraction form
    51,297.32/76,942.13 = 18,017.68/x
  3. Step 3: Cross multiply
    51,297.32x = 76,942.13 × 18,017.68
  4. Step 4: Simplify right side
    51,297.32x = 1,386,318,292.15
  5. Step 5: Solve for x
    x = 1,386,318,292.15/51,297.32
  6. Step 6: Final answer
    x = 27,025.16

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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.