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Finding the Fourth Proportional to 90,239.92, 135,492.94 and 50,336.87

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Solution

The fourth proportional to 90,239.92, 135,492.94 and 50,336.87 is: 75,579.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,239.92 : 135,492.94 = 50,336.87 : x
  2. Step 2: Convert to fraction form
    90,239.92/135,492.94 = 50,336.87/x
  3. Step 3: Cross multiply
    90,239.92x = 135,492.94 × 50,336.87
  4. Step 4: Simplify right side
    90,239.92x = 6,820,289,703.39
  5. Step 5: Solve for x
    x = 6,820,289,703.39/90,239.92
  6. Step 6: Final answer
    x = 75,579.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.