Home / 55,755.24-76,939.92-30,605.28

Finding the Fourth Proportional to 55,755.24, 76,939.92 and 30,605.28

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Solution

The fourth proportional to 55,755.24, 76,939.92 and 30,605.28 is: 42,234.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,755.24 : 76,939.92 = 30,605.28 : x
  2. Step 2: Convert to fraction form
    55,755.24/76,939.92 = 30,605.28/x
  3. Step 3: Cross multiply
    55,755.24x = 76,939.92 × 30,605.28
  4. Step 4: Simplify right side
    55,755.24x = 2,354,767,794.78
  5. Step 5: Solve for x
    x = 2,354,767,794.78/55,755.24
  6. Step 6: Final answer
    x = 42,234.02

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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.