Home / 76,218.54-114,369.12-31,849.20

Finding the Fourth Proportional to 76,218.54, 114,369.12 and 31,849.20

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Solution

The fourth proportional to 76,218.54, 114,369.12 and 31,849.20 is: 47,791.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,218.54 : 114,369.12 = 31,849.20 : x
  2. Step 2: Convert to fraction form
    76,218.54/114,369.12 = 31,849.20/x
  3. Step 3: Cross multiply
    76,218.54x = 114,369.12 × 31,849.20
  4. Step 4: Simplify right side
    76,218.54x = 3,642,564,976.70
  5. Step 5: Solve for x
    x = 3,642,564,976.70/76,218.54
  6. Step 6: Final answer
    x = 47,791.06

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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.