Home / 51,238.48-76,869.60-20,074

Finding the Fourth Proportional to 51,238.48, 76,869.60 and 20,074

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Solution

The fourth proportional to 51,238.48, 76,869.60 and 20,074 is: 30,115.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,238.48 : 76,869.60 = 20,074 : x
  2. Step 2: Convert to fraction form
    51,238.48/76,869.60 = 20,074/x
  3. Step 3: Cross multiply
    51,238.48x = 76,869.60 × 20,074
  4. Step 4: Simplify right side
    51,238.48x = 1,543,080,350.40
  5. Step 5: Solve for x
    x = 1,543,080,350.40/51,238.48
  6. Step 6: Final answer
    x = 30,115.65

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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.