Home / 98,396.48-135,786.45-55,955

Finding the Fourth Proportional to 98,396.48, 135,786.45 and 55,955

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Solution

The fourth proportional to 98,396.48, 135,786.45 and 55,955 is: 77,217.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,396.48 : 135,786.45 = 55,955 : x
  2. Step 2: Convert to fraction form
    98,396.48/135,786.45 = 55,955/x
  3. Step 3: Cross multiply
    98,396.48x = 135,786.45 × 55,955
  4. Step 4: Simplify right side
    98,396.48x = 7,597,930,809.75
  5. Step 5: Solve for x
    x = 7,597,930,809.75/98,396.48
  6. Step 6: Final answer
    x = 77,217.51

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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.