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Finding the Fourth Proportional to 90,453.57, 135,686.85 and 23,893.05

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Solution

The fourth proportional to 90,453.57, 135,686.85 and 23,893.05 is: 35,841.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,453.57 : 135,686.85 = 23,893.05 : x
  2. Step 2: Convert to fraction form
    90,453.57/135,686.85 = 23,893.05/x
  3. Step 3: Cross multiply
    90,453.57x = 135,686.85 × 23,893.05
  4. Step 4: Simplify right side
    90,453.57x = 3,241,972,691.39
  5. Step 5: Solve for x
    x = 3,241,972,691.39/90,453.57
  6. Step 6: Final answer
    x = 35,841.29

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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.