Home / 87,293.48-130,940.30-28,137.96

Finding the Fourth Proportional to 87,293.48, 130,940.30 and 28,137.96

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Solution

The fourth proportional to 87,293.48, 130,940.30 and 28,137.96 is: 42,206.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,293.48 : 130,940.30 = 28,137.96 : x
  2. Step 2: Convert to fraction form
    87,293.48/130,940.30 = 28,137.96/x
  3. Step 3: Cross multiply
    87,293.48x = 130,940.30 × 28,137.96
  4. Step 4: Simplify right side
    87,293.48x = 3,684,392,923.79
  5. Step 5: Solve for x
    x = 3,684,392,923.79/87,293.48
  6. Step 6: Final answer
    x = 42,206.97

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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.