Home / 55,176.06-82,805.67-40,422.78

Finding the Fourth Proportional to 55,176.06, 82,805.67 and 40,422.78

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Solution

The fourth proportional to 55,176.06, 82,805.67 and 40,422.78 is: 60,664.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,176.06 : 82,805.67 = 40,422.78 : x
  2. Step 2: Convert to fraction form
    55,176.06/82,805.67 = 40,422.78/x
  3. Step 3: Cross multiply
    55,176.06x = 82,805.67 × 40,422.78
  4. Step 4: Simplify right side
    55,176.06x = 3,347,235,381.16
  5. Step 5: Solve for x
    x = 3,347,235,381.16/55,176.06
  6. Step 6: Final answer
    x = 60,664.63

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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.