Home / 90,305.33-135,340.32-50,322.72

Finding the Fourth Proportional to 90,305.33, 135,340.32 and 50,322.72

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Solution

The fourth proportional to 90,305.33, 135,340.32 and 50,322.72 is: 75,418.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,305.33 : 135,340.32 = 50,322.72 : x
  2. Step 2: Convert to fraction form
    90,305.33/135,340.32 = 50,322.72/x
  3. Step 3: Cross multiply
    90,305.33x = 135,340.32 × 50,322.72
  4. Step 4: Simplify right side
    90,305.33x = 6,810,692,679.95
  5. Step 5: Solve for x
    x = 6,810,692,679.95/90,305.33
  6. Step 6: Final answer
    x = 75,418.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.