Home / 55,246.65-76,240.55-31,371.78

Finding the Fourth Proportional to 55,246.65, 76,240.55 and 31,371.78

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Solution

The fourth proportional to 55,246.65, 76,240.55 and 31,371.78 is: 43,293.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,246.65 : 76,240.55 = 31,371.78 : x
  2. Step 2: Convert to fraction form
    55,246.65/76,240.55 = 31,371.78/x
  3. Step 3: Cross multiply
    55,246.65x = 76,240.55 × 31,371.78
  4. Step 4: Simplify right side
    55,246.65x = 2,391,801,761.68
  5. Step 5: Solve for x
    x = 2,391,801,761.68/55,246.65
  6. Step 6: Final answer
    x = 43,293.15

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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.