Home / 55,490.11-76,575.20-30,339.61

Finding the Fourth Proportional to 55,490.11, 76,575.20 and 30,339.61

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Solution

The fourth proportional to 55,490.11, 76,575.20 and 30,339.61 is: 41,868.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,490.11 : 76,575.20 = 30,339.61 : x
  2. Step 2: Convert to fraction form
    55,490.11/76,575.20 = 30,339.61/x
  3. Step 3: Cross multiply
    55,490.11x = 76,575.20 × 30,339.61
  4. Step 4: Simplify right side
    55,490.11x = 2,323,261,360.54
  5. Step 5: Solve for x
    x = 2,323,261,360.54/55,490.11
  6. Step 6: Final answer
    x = 41,868.03

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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.