Home / 91,193.73-136,786.55-28,011.30

Finding the Fourth Proportional to 91,193.73, 136,786.55 and 28,011.30

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Solution

The fourth proportional to 91,193.73, 136,786.55 and 28,011.30 is: 42,015.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,193.73 : 136,786.55 = 28,011.30 : x
  2. Step 2: Convert to fraction form
    91,193.73/136,786.55 = 28,011.30/x
  3. Step 3: Cross multiply
    91,193.73x = 136,786.55 × 28,011.30
  4. Step 4: Simplify right side
    91,193.73x = 3,831,568,947.96
  5. Step 5: Solve for x
    x = 3,831,568,947.96/91,193.73
  6. Step 6: Final answer
    x = 42,015.71

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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.