Home / 87,735.69-131,574.11-28,557.45

Finding the Fourth Proportional to 87,735.69, 131,574.11 and 28,557.45

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Solution

The fourth proportional to 87,735.69, 131,574.11 and 28,557.45 is: 42,826.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,735.69 : 131,574.11 = 28,557.45 : x
  2. Step 2: Convert to fraction form
    87,735.69/131,574.11 = 28,557.45/x
  3. Step 3: Cross multiply
    87,735.69x = 131,574.11 × 28,557.45
  4. Step 4: Simplify right side
    87,735.69x = 3,757,420,924.83
  5. Step 5: Solve for x
    x = 3,757,420,924.83/87,735.69
  6. Step 6: Final answer
    x = 42,826.60

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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.