Home / 89,979.87-124,173.15-49,694.64

Finding the Fourth Proportional to 89,979.87, 124,173.15 and 49,694.64

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Solution

The fourth proportional to 89,979.87, 124,173.15 and 49,694.64 is: 68,579.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,979.87 : 124,173.15 = 49,694.64 : x
  2. Step 2: Convert to fraction form
    89,979.87/124,173.15 = 49,694.64/x
  3. Step 3: Cross multiply
    89,979.87x = 124,173.15 × 49,694.64
  4. Step 4: Simplify right side
    89,979.87x = 6,170,739,986.92
  5. Step 5: Solve for x
    x = 6,170,739,986.92/89,979.87
  6. Step 6: Final answer
    x = 68,579.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.