Home / 91,424.70-137,150.16-28,250.33

Finding the Fourth Proportional to 91,424.70, 137,150.16 and 28,250.33

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Solution

The fourth proportional to 91,424.70, 137,150.16 and 28,250.33 is: 42,379.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,424.70 : 137,150.16 = 28,250.33 : x
  2. Step 2: Convert to fraction form
    91,424.70/137,150.16 = 28,250.33/x
  3. Step 3: Cross multiply
    91,424.70x = 137,150.16 × 28,250.33
  4. Step 4: Simplify right side
    91,424.70x = 3,874,537,622.43
  5. Step 5: Solve for x
    x = 3,874,537,622.43/91,424.70
  6. Step 6: Final answer
    x = 42,379.55

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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.