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Finding the Fourth Proportional to 90,352.80, 135,577.80 and 37,767.60

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Solution

The fourth proportional to 90,352.80, 135,577.80 and 37,767.60 is: 56,671.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,352.80 : 135,577.80 = 37,767.60 : x
  2. Step 2: Convert to fraction form
    90,352.80/135,577.80 = 37,767.60/x
  3. Step 3: Cross multiply
    90,352.80x = 135,577.80 × 37,767.60
  4. Step 4: Simplify right side
    90,352.80x = 5,120,448,119.28
  5. Step 5: Solve for x
    x = 5,120,448,119.28/90,352.80
  6. Step 6: Final answer
    x = 56,671.71

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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.