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Finding the Fourth Proportional to 90,443.50, 124,812.03 and 50,163.43

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Solution

The fourth proportional to 90,443.50, 124,812.03 and 50,163.43 is: 69,225.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,443.50 : 124,812.03 = 50,163.43 : x
  2. Step 2: Convert to fraction form
    90,443.50/124,812.03 = 50,163.43/x
  3. Step 3: Cross multiply
    90,443.50x = 124,812.03 × 50,163.43
  4. Step 4: Simplify right side
    90,443.50x = 6,260,999,530.06
  5. Step 5: Solve for x
    x = 6,260,999,530.06/90,443.50
  6. Step 6: Final answer
    x = 69,225.53

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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.