Home / 90,605.39-135,793.26-51,184.71

Finding the Fourth Proportional to 90,605.39, 135,793.26 and 51,184.71

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Solution

The fourth proportional to 90,605.39, 135,793.26 and 51,184.71 is: 76,712.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,605.39 : 135,793.26 = 51,184.71 : x
  2. Step 2: Convert to fraction form
    90,605.39/135,793.26 = 51,184.71/x
  3. Step 3: Cross multiply
    90,605.39x = 135,793.26 × 51,184.71
  4. Step 4: Simplify right side
    90,605.39x = 6,950,538,633.05
  5. Step 5: Solve for x
    x = 6,950,538,633.05/90,605.39
  6. Step 6: Final answer
    x = 76,712.20

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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.