Home / 83,576.21-125,359.70-61,109.91

Finding the Fourth Proportional to 83,576.21, 125,359.70 and 61,109.91

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Solution

The fourth proportional to 83,576.21, 125,359.70 and 61,109.91 is: 91,661.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,576.21 : 125,359.70 = 61,109.91 : x
  2. Step 2: Convert to fraction form
    83,576.21/125,359.70 = 61,109.91/x
  3. Step 3: Cross multiply
    83,576.21x = 125,359.70 × 61,109.91
  4. Step 4: Simplify right side
    83,576.21x = 7,660,719,984.63
  5. Step 5: Solve for x
    x = 7,660,719,984.63/83,576.21
  6. Step 6: Final answer
    x = 91,661.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.