Home / 90,450.78-124,815.87-50,160.75

Finding the Fourth Proportional to 90,450.78, 124,815.87 and 50,160.75

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Solution

The fourth proportional to 90,450.78, 124,815.87 and 50,160.75 is: 69,218.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,450.78 : 124,815.87 = 50,160.75 : x
  2. Step 2: Convert to fraction form
    90,450.78/124,815.87 = 50,160.75/x
  3. Step 3: Cross multiply
    90,450.78x = 124,815.87 × 50,160.75
  4. Step 4: Simplify right side
    90,450.78x = 6,260,857,651.10
  5. Step 5: Solve for x
    x = 6,260,857,651.10/90,450.78
  6. Step 6: Final answer
    x = 69,218.39

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1.5x scale

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.