Home / 88,342.16-121,912.08-50,616.56

Finding the Fourth Proportional to 88,342.16, 121,912.08 and 50,616.56

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Solution

The fourth proportional to 88,342.16, 121,912.08 and 50,616.56 is: 69,850.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,342.16 : 121,912.08 = 50,616.56 : x
  2. Step 2: Convert to fraction form
    88,342.16/121,912.08 = 50,616.56/x
  3. Step 3: Cross multiply
    88,342.16x = 121,912.08 × 50,616.56
  4. Step 4: Simplify right side
    88,342.16x = 6,170,770,112.04
  5. Step 5: Solve for x
    x = 6,170,770,112.04/88,342.16
  6. Step 6: Final answer
    x = 69,850.80

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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.