Home / 87,081.53-130,633.94-34,478.71

Finding the Fourth Proportional to 87,081.53, 130,633.94 and 34,478.71

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Solution

The fourth proportional to 87,081.53, 130,633.94 and 34,478.71 is: 51,722.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,081.53 : 130,633.94 = 34,478.71 : x
  2. Step 2: Convert to fraction form
    87,081.53/130,633.94 = 34,478.71/x
  3. Step 3: Cross multiply
    87,081.53x = 130,633.94 × 34,478.71
  4. Step 4: Simplify right side
    87,081.53x = 4,504,090,244.84
  5. Step 5: Solve for x
    x = 4,504,090,244.84/87,081.53
  6. Step 6: Final answer
    x = 51,722.68

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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.