Home / 55,937.27-83,938.77-20,879.66

Finding the Fourth Proportional to 55,937.27, 83,938.77 and 20,879.66

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Solution

The fourth proportional to 55,937.27, 83,938.77 and 20,879.66 is: 31,331.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,937.27 : 83,938.77 = 20,879.66 : x
  2. Step 2: Convert to fraction form
    55,937.27/83,938.77 = 20,879.66/x
  3. Step 3: Cross multiply
    55,937.27x = 83,938.77 × 20,879.66
  4. Step 4: Simplify right side
    55,937.27x = 1,752,612,558.72
  5. Step 5: Solve for x
    x = 1,752,612,558.72/55,937.27
  6. Step 6: Final answer
    x = 31,331.75

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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.