Home / 55,418.76-76,469.04-31,545.90

Finding the Fourth Proportional to 55,418.76, 76,469.04 and 31,545.90

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Solution

The fourth proportional to 55,418.76, 76,469.04 and 31,545.90 is: 43,528.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,418.76 : 76,469.04 = 31,545.90 : x
  2. Step 2: Convert to fraction form
    55,418.76/76,469.04 = 31,545.90/x
  3. Step 3: Cross multiply
    55,418.76x = 76,469.04 × 31,545.90
  4. Step 4: Simplify right side
    55,418.76x = 2,412,284,688.94
  5. Step 5: Solve for x
    x = 2,412,284,688.94/55,418.76
  6. Step 6: Final answer
    x = 43,528.31

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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.