Home / 90,745.28-125,228.60-50,458.60

Finding the Fourth Proportional to 90,745.28, 125,228.60 and 50,458.60

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Solution

The fourth proportional to 90,745.28, 125,228.60 and 50,458.60 is: 69,632.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,745.28 : 125,228.60 = 50,458.60 : x
  2. Step 2: Convert to fraction form
    90,745.28/125,228.60 = 50,458.60/x
  3. Step 3: Cross multiply
    90,745.28x = 125,228.60 × 50,458.60
  4. Step 4: Simplify right side
    90,745.28x = 6,318,859,835.96
  5. Step 5: Solve for x
    x = 6,318,859,835.96/90,745.28
  6. Step 6: Final answer
    x = 69,632.93

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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.