Home / 90,708.76-125,198.40-50,436.64

Finding the Fourth Proportional to 90,708.76, 125,198.40 and 50,436.64

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Solution

The fourth proportional to 90,708.76, 125,198.40 and 50,436.64 is: 69,613.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,708.76 : 125,198.40 = 50,436.64 : x
  2. Step 2: Convert to fraction form
    90,708.76/125,198.40 = 50,436.64/x
  3. Step 3: Cross multiply
    90,708.76x = 125,198.40 × 50,436.64
  4. Step 4: Simplify right side
    90,708.76x = 6,314,586,629.38
  5. Step 5: Solve for x
    x = 6,314,586,629.38/90,708.76
  6. Step 6: Final answer
    x = 69,613.86

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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.