Home / 90,921.32-125,471.08-50,635.60

Finding the Fourth Proportional to 90,921.32, 125,471.08 and 50,635.60

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Solution

The fourth proportional to 90,921.32, 125,471.08 and 50,635.60 is: 69,876.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,921.32 : 125,471.08 = 50,635.60 : x
  2. Step 2: Convert to fraction form
    90,921.32/125,471.08 = 50,635.60/x
  3. Step 3: Cross multiply
    90,921.32x = 125,471.08 × 50,635.60
  4. Step 4: Simplify right side
    90,921.32x = 6,353,303,418.45
  5. Step 5: Solve for x
    x = 6,353,303,418.45/90,921.32
  6. Step 6: Final answer
    x = 69,876.94

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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.