Home / 51,237.96-76,851.17-13,800.78

Finding the Fourth Proportional to 51,237.96, 76,851.17 and 13,800.78

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Solution

The fourth proportional to 51,237.96, 76,851.17 and 13,800.78 is: 20,699.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,237.96 : 76,851.17 = 13,800.78 : x
  2. Step 2: Convert to fraction form
    51,237.96/76,851.17 = 13,800.78/x
  3. Step 3: Cross multiply
    51,237.96x = 76,851.17 × 13,800.78
  4. Step 4: Simplify right side
    51,237.96x = 1,060,606,020.91
  5. Step 5: Solve for x
    x = 1,060,606,020.91/51,237.96
  6. Step 6: Final answer
    x = 20,699.61

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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.