Home / 98,434.14-135,826.92-55,408.38

Finding the Fourth Proportional to 98,434.14, 135,826.92 and 55,408.38

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Solution

The fourth proportional to 98,434.14, 135,826.92 and 55,408.38 is: 76,456.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,434.14 : 135,826.92 = 55,408.38 : x
  2. Step 2: Convert to fraction form
    98,434.14/135,826.92 = 55,408.38/x
  3. Step 3: Cross multiply
    98,434.14x = 135,826.92 × 55,408.38
  4. Step 4: Simplify right side
    98,434.14x = 7,525,949,597.59
  5. Step 5: Solve for x
    x = 7,525,949,597.59/98,434.14
  6. Step 6: Final answer
    x = 76,456.70

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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.