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Finding the Fourth Proportional to 90,373.05, 124,715.07 and 50,087.48

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Solution

The fourth proportional to 90,373.05, 124,715.07 and 50,087.48 is: 69,120.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,373.05 : 124,715.07 = 50,087.48 : x
  2. Step 2: Convert to fraction form
    90,373.05/124,715.07 = 50,087.48/x
  3. Step 3: Cross multiply
    90,373.05x = 124,715.07 × 50,087.48
  4. Step 4: Simplify right side
    90,373.05x = 6,246,662,950.75
  5. Step 5: Solve for x
    x = 6,246,662,950.75/90,373.05
  6. Step 6: Final answer
    x = 69,120.86

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.