Home / 51,159.70-76,734.21-13,723.78

Finding the Fourth Proportional to 51,159.70, 76,734.21 and 13,723.78

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Solution

The fourth proportional to 51,159.70, 76,734.21 and 13,723.78 is: 20,584.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,159.70 : 76,734.21 = 13,723.78 : x
  2. Step 2: Convert to fraction form
    51,159.70/76,734.21 = 13,723.78/x
  3. Step 3: Cross multiply
    51,159.70x = 76,734.21 × 13,723.78
  4. Step 4: Simplify right side
    51,159.70x = 1,053,083,416.51
  5. Step 5: Solve for x
    x = 1,053,083,416.51/51,159.70
  6. Step 6: Final answer
    x = 20,584.24

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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.