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Finding the Fourth Proportional to 87,122.54, 130,684.72 and 34,532.48

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Solution

The fourth proportional to 87,122.54, 130,684.72 and 34,532.48 is: 51,799.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,122.54 : 130,684.72 = 34,532.48 : x
  2. Step 2: Convert to fraction form
    87,122.54/130,684.72 = 34,532.48/x
  3. Step 3: Cross multiply
    87,122.54x = 130,684.72 × 34,532.48
  4. Step 4: Simplify right side
    87,122.54x = 4,512,867,479.71
  5. Step 5: Solve for x
    x = 4,512,867,479.71/87,122.54
  6. Step 6: Final answer
    x = 51,799.08

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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.