Home / 90,679.14-125,137.27-50,396.65

Finding the Fourth Proportional to 90,679.14, 125,137.27 and 50,396.65

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Solution

The fourth proportional to 90,679.14, 125,137.27 and 50,396.65 is: 69,547.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,679.14 : 125,137.27 = 50,396.65 : x
  2. Step 2: Convert to fraction form
    90,679.14/125,137.27 = 50,396.65/x
  3. Step 3: Cross multiply
    90,679.14x = 125,137.27 × 50,396.65
  4. Step 4: Simplify right side
    90,679.14x = 6,306,499,198.15
  5. Step 5: Solve for x
    x = 6,306,499,198.15/90,679.14
  6. Step 6: Final answer
    x = 69,547.41

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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.