Home / 87,928.73-131,891.43-21,368.30

Finding the Fourth Proportional to 87,928.73, 131,891.43 and 21,368.30

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Solution

The fourth proportional to 87,928.73, 131,891.43 and 21,368.30 is: 32,052.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,928.73 : 131,891.43 = 21,368.30 : x
  2. Step 2: Convert to fraction form
    87,928.73/131,891.43 = 21,368.30/x
  3. Step 3: Cross multiply
    87,928.73x = 131,891.43 × 21,368.30
  4. Step 4: Simplify right side
    87,928.73x = 2,818,295,643.67
  5. Step 5: Solve for x
    x = 2,818,295,643.67/87,928.73
  6. Step 6: Final answer
    x = 32,052.05

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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.