Home / 83,460.14-125,190.21-20,279.94

Finding the Fourth Proportional to 83,460.14, 125,190.21 and 20,279.94

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Solution

The fourth proportional to 83,460.14, 125,190.21 and 20,279.94 is: 30,419.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,460.14 : 125,190.21 = 20,279.94 : x
  2. Step 2: Convert to fraction form
    83,460.14/125,190.21 = 20,279.94/x
  3. Step 3: Cross multiply
    83,460.14x = 125,190.21 × 20,279.94
  4. Step 4: Simplify right side
    83,460.14x = 2,538,849,947.39
  5. Step 5: Solve for x
    x = 2,538,849,947.39/83,460.14
  6. Step 6: Final answer
    x = 30,419.91

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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.