Home / 51,251.18-76,871.06-13,814.98

Finding the Fourth Proportional to 51,251.18, 76,871.06 and 13,814.98

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Solution

The fourth proportional to 51,251.18, 76,871.06 and 13,814.98 is: 20,720.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,251.18 : 76,871.06 = 13,814.98 : x
  2. Step 2: Convert to fraction form
    51,251.18/76,871.06 = 13,814.98/x
  3. Step 3: Cross multiply
    51,251.18x = 76,871.06 × 13,814.98
  4. Step 4: Simplify right side
    51,251.18x = 1,061,972,279.58
  5. Step 5: Solve for x
    x = 1,061,972,279.58/51,251.18
  6. Step 6: Final answer
    x = 20,720.93

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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.