Home / 55,517.54-76,621.49-31,638.74

Finding the Fourth Proportional to 55,517.54, 76,621.49 and 31,638.74

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Solution

The fourth proportional to 55,517.54, 76,621.49 and 31,638.74 is: 43,665.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,517.54 : 76,621.49 = 31,638.74 : x
  2. Step 2: Convert to fraction form
    55,517.54/76,621.49 = 31,638.74/x
  3. Step 3: Cross multiply
    55,517.54x = 76,621.49 × 31,638.74
  4. Step 4: Simplify right side
    55,517.54x = 2,424,206,859.22
  5. Step 5: Solve for x
    x = 2,424,206,859.22/55,517.54
  6. Step 6: Final answer
    x = 43,665.61

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1.5x scale

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.