Home / 98,576.88-135,985.56-66,734.64

Finding the Fourth Proportional to 98,576.88, 135,985.56 and 66,734.64

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Solution

The fourth proportional to 98,576.88, 135,985.56 and 66,734.64 is: 92,059.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,576.88 : 135,985.56 = 66,734.64 : x
  2. Step 2: Convert to fraction form
    98,576.88/135,985.56 = 66,734.64/x
  3. Step 3: Cross multiply
    98,576.88x = 135,985.56 × 66,734.64
  4. Step 4: Simplify right side
    98,576.88x = 9,074,947,391.80
  5. Step 5: Solve for x
    x = 9,074,947,391.80/98,576.88
  6. Step 6: Final answer
    x = 92,059.59

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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.