Home / 91,975.83-137,889.33-28,763.43

Finding the Fourth Proportional to 91,975.83, 137,889.33 and 28,763.43

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Solution

The fourth proportional to 91,975.83, 137,889.33 and 28,763.43 is: 43,121.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,975.83 : 137,889.33 = 28,763.43 : x
  2. Step 2: Convert to fraction form
    91,975.83/137,889.33 = 28,763.43/x
  3. Step 3: Cross multiply
    91,975.83x = 137,889.33 × 28,763.43
  4. Step 4: Simplify right side
    91,975.83x = 3,966,170,091.20
  5. Step 5: Solve for x
    x = 3,966,170,091.20/91,975.83
  6. Step 6: Final answer
    x = 43,121.87

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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.