Home / 98,458.33-135,854.58-55,431.13

Finding the Fourth Proportional to 98,458.33, 135,854.58 and 55,431.13

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Solution

The fourth proportional to 98,458.33, 135,854.58 and 55,431.13 is: 76,484.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,458.33 : 135,854.58 = 55,431.13 : x
  2. Step 2: Convert to fraction form
    98,458.33/135,854.58 = 55,431.13/x
  3. Step 3: Cross multiply
    98,458.33x = 135,854.58 × 55,431.13
  4. Step 4: Simplify right side
    98,458.33x = 7,530,572,947.56
  5. Step 5: Solve for x
    x = 7,530,572,947.56/98,458.33
  6. Step 6: Final answer
    x = 76,484.87

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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.