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Finding the Fourth Proportional to 90,380.60, 124,723.07 and 50,093.50

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Solution

The fourth proportional to 90,380.60, 124,723.07 and 50,093.50 is: 69,127.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,380.60 : 124,723.07 = 50,093.50 : x
  2. Step 2: Convert to fraction form
    90,380.60/124,723.07 = 50,093.50/x
  3. Step 3: Cross multiply
    90,380.60x = 124,723.07 × 50,093.50
  4. Step 4: Simplify right side
    90,380.60x = 6,247,814,544.77
  5. Step 5: Solve for x
    x = 6,247,814,544.77/90,380.60
  6. Step 6: Final answer
    x = 69,127.83

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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.