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Finding the Fourth Proportional to 90,323.94, 124,661.25 and 54,519.06

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Solution

The fourth proportional to 90,323.94, 124,661.25 and 54,519.06 is: 75,244.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,323.94 : 124,661.25 = 54,519.06 : x
  2. Step 2: Convert to fraction form
    90,323.94/124,661.25 = 54,519.06/x
  3. Step 3: Cross multiply
    90,323.94x = 124,661.25 × 54,519.06
  4. Step 4: Simplify right side
    90,323.94x = 6,796,414,168.43
  5. Step 5: Solve for x
    x = 6,796,414,168.43/90,323.94
  6. Step 6: Final answer
    x = 75,244.88

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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.