Home / 91,273.23-136,922.81-28,098.60

Finding the Fourth Proportional to 91,273.23, 136,922.81 and 28,098.60

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Solution

The fourth proportional to 91,273.23, 136,922.81 and 28,098.60 is: 42,151.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,273.23 : 136,922.81 = 28,098.60 : x
  2. Step 2: Convert to fraction form
    91,273.23/136,922.81 = 28,098.60/x
  3. Step 3: Cross multiply
    91,273.23x = 136,922.81 × 28,098.60
  4. Step 4: Simplify right side
    91,273.23x = 3,847,339,128.57
  5. Step 5: Solve for x
    x = 3,847,339,128.57/91,273.23
  6. Step 6: Final answer
    x = 42,151.89

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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.