Home / 87,798.87-131,684.93-28,634.45

Finding the Fourth Proportional to 87,798.87, 131,684.93 and 28,634.45

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Solution

The fourth proportional to 87,798.87, 131,684.93 and 28,634.45 is: 42,947.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,798.87 : 131,684.93 = 28,634.45 : x
  2. Step 2: Convert to fraction form
    87,798.87/131,684.93 = 28,634.45/x
  3. Step 3: Cross multiply
    87,798.87x = 131,684.93 × 28,634.45
  4. Step 4: Simplify right side
    87,798.87x = 3,770,724,742.24
  5. Step 5: Solve for x
    x = 3,770,724,742.24/87,798.87
  6. Step 6: Final answer
    x = 42,947.30

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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.