Home / 98,231.72-135,576.16-57,955.46

Finding the Fourth Proportional to 98,231.72, 135,576.16 and 57,955.46

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Solution

The fourth proportional to 98,231.72, 135,576.16 and 57,955.46 is: 79,988.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,231.72 : 135,576.16 = 57,955.46 : x
  2. Step 2: Convert to fraction form
    98,231.72/135,576.16 = 57,955.46/x
  3. Step 3: Cross multiply
    98,231.72x = 135,576.16 × 57,955.46
  4. Step 4: Simplify right side
    98,231.72x = 7,857,378,717.83
  5. Step 5: Solve for x
    x = 7,857,378,717.83/98,231.72
  6. Step 6: Final answer
    x = 79,988.20

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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.