Home / 55,306.24-76,326.24-31,432.96

Finding the Fourth Proportional to 55,306.24, 76,326.24 and 31,432.96

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Solution

The fourth proportional to 55,306.24, 76,326.24 and 31,432.96 is: 43,379.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,306.24 : 76,326.24 = 31,432.96 : x
  2. Step 2: Convert to fraction form
    55,306.24/76,326.24 = 31,432.96/x
  3. Step 3: Cross multiply
    55,306.24x = 76,326.24 × 31,432.96
  4. Step 4: Simplify right side
    55,306.24x = 2,399,159,648.87
  5. Step 5: Solve for x
    x = 2,399,159,648.87/55,306.24
  6. Step 6: Final answer
    x = 43,379.55

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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.