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Finding the Fourth Proportional to 90,550.62, 135,825.83 and 34,390.63

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Solution

The fourth proportional to 90,550.62, 135,825.83 and 34,390.63 is: 51,585.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,550.62 : 135,825.83 = 34,390.63 : x
  2. Step 2: Convert to fraction form
    90,550.62/135,825.83 = 34,390.63/x
  3. Step 3: Cross multiply
    90,550.62x = 135,825.83 × 34,390.63
  4. Step 4: Simplify right side
    90,550.62x = 4,671,135,352.46
  5. Step 5: Solve for x
    x = 4,671,135,352.46/90,550.62
  6. Step 6: Final answer
    x = 51,585.90

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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.