Home / 56,132.06-84,206.32-20,105.78

Finding the Fourth Proportional to 56,132.06, 84,206.32 and 20,105.78

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Solution

The fourth proportional to 56,132.06, 84,206.32 and 20,105.78 is: 30,161.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,132.06 : 84,206.32 = 20,105.78 : x
  2. Step 2: Convert to fraction form
    56,132.06/84,206.32 = 20,105.78/x
  3. Step 3: Cross multiply
    56,132.06x = 84,206.32 × 20,105.78
  4. Step 4: Simplify right side
    56,132.06x = 1,693,033,273.23
  5. Step 5: Solve for x
    x = 1,693,033,273.23/56,132.06
  6. Step 6: Final answer
    x = 30,161.61

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1.5x scale

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.