Home / 98,385.10-135,770.78-55,943.62

Finding the Fourth Proportional to 98,385.10, 135,770.78 and 55,943.62

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Solution

The fourth proportional to 98,385.10, 135,770.78 and 55,943.62 is: 77,201.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,385.10 : 135,770.78 = 55,943.62 : x
  2. Step 2: Convert to fraction form
    98,385.10/135,770.78 = 55,943.62/x
  3. Step 3: Cross multiply
    98,385.10x = 135,770.78 × 55,943.62
  4. Step 4: Simplify right side
    98,385.10x = 7,595,508,923.42
  5. Step 5: Solve for x
    x = 7,595,508,923.42/98,385.10
  6. Step 6: Final answer
    x = 77,201.82

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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.