Home / 87,144.81-130,704.85-27,972.69

Finding the Fourth Proportional to 87,144.81, 130,704.85 and 27,972.69

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Solution

The fourth proportional to 87,144.81, 130,704.85 and 27,972.69 is: 41,955.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,144.81 : 130,704.85 = 27,972.69 : x
  2. Step 2: Convert to fraction form
    87,144.81/130,704.85 = 27,972.69/x
  3. Step 3: Cross multiply
    87,144.81x = 130,704.85 × 27,972.69
  4. Step 4: Simplify right side
    87,144.81x = 3,656,166,250.55
  5. Step 5: Solve for x
    x = 3,656,166,250.55/87,144.81
  6. Step 6: Final answer
    x = 41,955.07

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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.