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Finding the Fourth Proportional to 90,367.60, 124,628.70 and 67,757.44

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Solution

The fourth proportional to 90,367.60, 124,628.70 and 67,757.44 is: 93,446.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,367.60 : 124,628.70 = 67,757.44 : x
  2. Step 2: Convert to fraction form
    90,367.60/124,628.70 = 67,757.44/x
  3. Step 3: Cross multiply
    90,367.60x = 124,628.70 × 67,757.44
  4. Step 4: Simplify right side
    90,367.60x = 8,444,521,662.53
  5. Step 5: Solve for x
    x = 8,444,521,662.53/90,367.60
  6. Step 6: Final answer
    x = 93,446.34

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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.