Home / 87,936.51-131,903.62-21,376.45

Finding the Fourth Proportional to 87,936.51, 131,903.62 and 21,376.45

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Solution

The fourth proportional to 87,936.51, 131,903.62 and 21,376.45 is: 32,064.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,936.51 : 131,903.62 = 21,376.45 : x
  2. Step 2: Convert to fraction form
    87,936.51/131,903.62 = 21,376.45/x
  3. Step 3: Cross multiply
    87,936.51x = 131,903.62 × 21,376.45
  4. Step 4: Simplify right side
    87,936.51x = 2,819,631,137.75
  5. Step 5: Solve for x
    x = 2,819,631,137.75/87,936.51
  6. Step 6: Final answer
    x = 32,064.40

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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.