Home / 98,418.42-135,828.27-55,399.14

Finding the Fourth Proportional to 98,418.42, 135,828.27 and 55,399.14

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Solution

The fourth proportional to 98,418.42, 135,828.27 and 55,399.14 is: 76,456.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,418.42 : 135,828.27 = 55,399.14 : x
  2. Step 2: Convert to fraction form
    98,418.42/135,828.27 = 55,399.14/x
  3. Step 3: Cross multiply
    98,418.42x = 135,828.27 × 55,399.14
  4. Step 4: Simplify right side
    98,418.42x = 7,524,769,345.69
  5. Step 5: Solve for x
    x = 7,524,769,345.69/98,418.42
  6. Step 6: Final answer
    x = 76,456.92

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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.