Home / 87,448.17-131,213.79-45,320.43

Finding the Fourth Proportional to 87,448.17, 131,213.79 and 45,320.43

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Solution

The fourth proportional to 87,448.17, 131,213.79 and 45,320.43 is: 68,002.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,448.17 : 131,213.79 = 45,320.43 : x
  2. Step 2: Convert to fraction form
    87,448.17/131,213.79 = 45,320.43/x
  3. Step 3: Cross multiply
    87,448.17x = 131,213.79 × 45,320.43
  4. Step 4: Simplify right side
    87,448.17x = 5,946,665,384.73
  5. Step 5: Solve for x
    x = 5,946,665,384.73/87,448.17
  6. Step 6: Final answer
    x = 68,002.17

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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.