Home / 87,798.99-131,685.12-28,634.57

Finding the Fourth Proportional to 87,798.99, 131,685.12 and 28,634.57

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Solution

The fourth proportional to 87,798.99, 131,685.12 and 28,634.57 is: 42,947.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,798.99 : 131,685.12 = 28,634.57 : x
  2. Step 2: Convert to fraction form
    87,798.99/131,685.12 = 28,634.57/x
  3. Step 3: Cross multiply
    87,798.99x = 131,685.12 × 28,634.57
  4. Step 4: Simplify right side
    87,798.99x = 3,770,745,985.00
  5. Step 5: Solve for x
    x = 3,770,745,985.00/87,798.99
  6. Step 6: Final answer
    x = 42,947.49

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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.