Home / 51,278.30-76,892.12-15,731.11

Finding the Fourth Proportional to 51,278.30, 76,892.12 and 15,731.11

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Solution

The fourth proportional to 51,278.30, 76,892.12 and 15,731.11 is: 23,588.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,278.30 : 76,892.12 = 15,731.11 : x
  2. Step 2: Convert to fraction form
    51,278.30/76,892.12 = 15,731.11/x
  3. Step 3: Cross multiply
    51,278.30x = 76,892.12 × 15,731.11
  4. Step 4: Simplify right side
    51,278.30x = 1,209,598,474.30
  5. Step 5: Solve for x
    x = 1,209,598,474.30/51,278.30
  6. Step 6: Final answer
    x = 23,588.90

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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.