Home / 87,440.82-130,970.77-53,604.43

Finding the Fourth Proportional to 87,440.82, 130,970.77 and 53,604.43

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Solution

The fourth proportional to 87,440.82, 130,970.77 and 53,604.43 is: 80,289.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,440.82 : 130,970.77 = 53,604.43 : x
  2. Step 2: Convert to fraction form
    87,440.82/130,970.77 = 53,604.43/x
  3. Step 3: Cross multiply
    87,440.82x = 130,970.77 × 53,604.43
  4. Step 4: Simplify right side
    87,440.82x = 7,020,614,049.31
  5. Step 5: Solve for x
    x = 7,020,614,049.31/87,440.82
  6. Step 6: Final answer
    x = 80,289.90

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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.