Home / 87,629.02-131,431.17-28,465.41

Finding the Fourth Proportional to 87,629.02, 131,431.17 and 28,465.41

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Solution

The fourth proportional to 87,629.02, 131,431.17 and 28,465.41 is: 42,694.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,629.02 : 131,431.17 = 28,465.41 : x
  2. Step 2: Convert to fraction form
    87,629.02/131,431.17 = 28,465.41/x
  3. Step 3: Cross multiply
    87,629.02x = 131,431.17 × 28,465.41
  4. Step 4: Simplify right side
    87,629.02x = 3,741,242,140.83
  5. Step 5: Solve for x
    x = 3,741,242,140.83/87,629.02
  6. Step 6: Final answer
    x = 42,694.10

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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.