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Finding the Fourth Proportional to 87,194.40, 130,698 and 34,530.72

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Solution

The fourth proportional to 87,194.40, 130,698 and 34,530.72 is: 51,759.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,194.40 : 130,698 = 34,530.72 : x
  2. Step 2: Convert to fraction form
    87,194.40/130,698 = 34,530.72/x
  3. Step 3: Cross multiply
    87,194.40x = 130,698 × 34,530.72
  4. Step 4: Simplify right side
    87,194.40x = 4,513,096,042.56
  5. Step 5: Solve for x
    x = 4,513,096,042.56/87,194.40
  6. Step 6: Final answer
    x = 51,759.01

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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.