Home / 90,169.67-135,277.57-52,761.20

Finding the Fourth Proportional to 90,169.67, 135,277.57 and 52,761.20

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Solution

The fourth proportional to 90,169.67, 135,277.57 and 52,761.20 is: 79,155.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,169.67 : 135,277.57 = 52,761.20 : x
  2. Step 2: Convert to fraction form
    90,169.67/135,277.57 = 52,761.20/x
  3. Step 3: Cross multiply
    90,169.67x = 135,277.57 × 52,761.20
  4. Step 4: Simplify right side
    90,169.67x = 7,137,407,403.98
  5. Step 5: Solve for x
    x = 7,137,407,403.98/90,169.67
  6. Step 6: Final answer
    x = 79,155.30

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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.