Home / 79,443.06-119,164.44-20,278.71

Finding the Fourth Proportional to 79,443.06, 119,164.44 and 20,278.71

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Solution

The fourth proportional to 79,443.06, 119,164.44 and 20,278.71 is: 30,418.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,443.06 : 119,164.44 = 20,278.71 : x
  2. Step 2: Convert to fraction form
    79,443.06/119,164.44 = 20,278.71/x
  3. Step 3: Cross multiply
    79,443.06x = 119,164.44 × 20,278.71
  4. Step 4: Simplify right side
    79,443.06x = 2,416,501,121.07
  5. Step 5: Solve for x
    x = 2,416,501,121.07/79,443.06
  6. Step 6: Final answer
    x = 30,418.03

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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.