Home / 98,072.28-135,333.99-55,047.78

Finding the Fourth Proportional to 98,072.28, 135,333.99 and 55,047.78

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Solution

The fourth proportional to 98,072.28, 135,333.99 and 55,047.78 is: 75,962.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,072.28 : 135,333.99 = 55,047.78 : x
  2. Step 2: Convert to fraction form
    98,072.28/135,333.99 = 55,047.78/x
  3. Step 3: Cross multiply
    98,072.28x = 135,333.99 × 55,047.78
  4. Step 4: Simplify right side
    98,072.28x = 7,449,835,708.04
  5. Step 5: Solve for x
    x = 7,449,835,708.04/98,072.28
  6. Step 6: Final answer
    x = 75,962.71

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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.