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Finding the Fourth Proportional to 90,238, 124,534.32 and 50,494

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Solution

The fourth proportional to 90,238, 124,534.32 and 50,494 is: 69,685.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,238 : 124,534.32 = 50,494 : x
  2. Step 2: Convert to fraction form
    90,238/124,534.32 = 50,494/x
  3. Step 3: Cross multiply
    90,238x = 124,534.32 × 50,494
  4. Step 4: Simplify right side
    90,238x = 6,288,235,954.08
  5. Step 5: Solve for x
    x = 6,288,235,954.08/90,238
  6. Step 6: Final answer
    x = 69,685.01

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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.