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Finding the Fourth Proportional to 98,380.38, 135,751.23 and 55,934.22

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Solution

The fourth proportional to 98,380.38, 135,751.23 and 55,934.22 is: 77,181.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,380.38 : 135,751.23 = 55,934.22 : x
  2. Step 2: Convert to fraction form
    98,380.38/135,751.23 = 55,934.22/x
  3. Step 3: Cross multiply
    98,380.38x = 135,751.23 × 55,934.22
  4. Step 4: Simplify right side
    98,380.38x = 7,593,139,164.09
  5. Step 5: Solve for x
    x = 7,593,139,164.09/98,380.38
  6. Step 6: Final answer
    x = 77,181.44

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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.