Home / 90,670.70-125,125.62-50,388.21

Finding the Fourth Proportional to 90,670.70, 125,125.62 and 50,388.21

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Solution

The fourth proportional to 90,670.70, 125,125.62 and 50,388.21 is: 69,535.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,670.70 : 125,125.62 = 50,388.21 : x
  2. Step 2: Convert to fraction form
    90,670.70/125,125.62 = 50,388.21/x
  3. Step 3: Cross multiply
    90,670.70x = 125,125.62 × 50,388.21
  4. Step 4: Simplify right side
    90,670.70x = 6,304,856,016.94
  5. Step 5: Solve for x
    x = 6,304,856,016.94/90,670.70
  6. Step 6: Final answer
    x = 69,535.76

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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.