Home / 51,142.64-76,732.38-17,867.60

Finding the Fourth Proportional to 51,142.64, 76,732.38 and 17,867.60

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Solution

The fourth proportional to 51,142.64, 76,732.38 and 17,867.60 is: 26,807.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,142.64 : 76,732.38 = 17,867.60 : x
  2. Step 2: Convert to fraction form
    51,142.64/76,732.38 = 17,867.60/x
  3. Step 3: Cross multiply
    51,142.64x = 76,732.38 × 17,867.60
  4. Step 4: Simplify right side
    51,142.64x = 1,371,023,472.89
  5. Step 5: Solve for x
    x = 1,371,023,472.89/51,142.64
  6. Step 6: Final answer
    x = 26,807.84

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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.