Home / 55,112.68-75,920.52-39,960.82

Finding the Fourth Proportional to 55,112.68, 75,920.52 and 39,960.82

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Solution

The fourth proportional to 55,112.68, 75,920.52 and 39,960.82 is: 55,048.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,112.68 : 75,920.52 = 39,960.82 : x
  2. Step 2: Convert to fraction form
    55,112.68/75,920.52 = 39,960.82/x
  3. Step 3: Cross multiply
    55,112.68x = 75,920.52 × 39,960.82
  4. Step 4: Simplify right side
    55,112.68x = 3,033,846,234.03
  5. Step 5: Solve for x
    x = 3,033,846,234.03/55,112.68
  6. Step 6: Final answer
    x = 55,048.06

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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.