Home / 90,663.18-125,112.51-50,375.94

Finding the Fourth Proportional to 90,663.18, 125,112.51 and 50,375.94

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Solution

The fourth proportional to 90,663.18, 125,112.51 and 50,375.94 is: 69,517.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,663.18 : 125,112.51 = 50,375.94 : x
  2. Step 2: Convert to fraction form
    90,663.18/125,112.51 = 50,375.94/x
  3. Step 3: Cross multiply
    90,663.18x = 125,112.51 × 50,375.94
  4. Step 4: Simplify right side
    90,663.18x = 6,302,660,297.01
  5. Step 5: Solve for x
    x = 6,302,660,297.01/90,663.18
  6. Step 6: Final answer
    x = 69,517.31

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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.