Home / 87,256.23-130,891.10-28,093.70

Finding the Fourth Proportional to 87,256.23, 130,891.10 and 28,093.70

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Solution

The fourth proportional to 87,256.23, 130,891.10 and 28,093.70 is: 42,142.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,256.23 : 130,891.10 = 28,093.70 : x
  2. Step 2: Convert to fraction form
    87,256.23/130,891.10 = 28,093.70/x
  3. Step 3: Cross multiply
    87,256.23x = 130,891.10 × 28,093.70
  4. Step 4: Simplify right side
    87,256.23x = 3,677,215,296.07
  5. Step 5: Solve for x
    x = 3,677,215,296.07/87,256.23
  6. Step 6: Final answer
    x = 42,142.72

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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.