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Finding the Fourth Proportional to 90,375.94, 124,716.27 and 54,552.88

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Solution

The fourth proportional to 90,375.94, 124,716.27 and 54,552.88 is: 75,281.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,375.94 : 124,716.27 = 54,552.88 : x
  2. Step 2: Convert to fraction form
    90,375.94/124,716.27 = 54,552.88/x
  3. Step 3: Cross multiply
    90,375.94x = 124,716.27 × 54,552.88
  4. Step 4: Simplify right side
    90,375.94x = 6,803,631,711.36
  5. Step 5: Solve for x
    x = 6,803,631,711.36/90,375.94
  6. Step 6: Final answer
    x = 75,281.45

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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.