Home / 50,677.12-69,929.76-31,781.44

Finding the Fourth Proportional to 50,677.12, 69,929.76 and 31,781.44

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Solution

The fourth proportional to 50,677.12, 69,929.76 and 31,781.44 is: 43,855.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,677.12 : 69,929.76 = 31,781.44 : x
  2. Step 2: Convert to fraction form
    50,677.12/69,929.76 = 31,781.44/x
  3. Step 3: Cross multiply
    50,677.12x = 69,929.76 × 31,781.44
  4. Step 4: Simplify right side
    50,677.12x = 2,222,468,471.65
  5. Step 5: Solve for x
    x = 2,222,468,471.65/50,677.12
  6. Step 6: Final answer
    x = 43,855.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.