Home / 90,254.92-135,382.66-31,089.82

Finding the Fourth Proportional to 90,254.92, 135,382.66 and 31,089.82

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Solution

The fourth proportional to 90,254.92, 135,382.66 and 31,089.82 is: 46,634.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,254.92 : 135,382.66 = 31,089.82 : x
  2. Step 2: Convert to fraction form
    90,254.92/135,382.66 = 31,089.82/x
  3. Step 3: Cross multiply
    90,254.92x = 135,382.66 × 31,089.82
  4. Step 4: Simplify right side
    90,254.92x = 4,209,022,530.52
  5. Step 5: Solve for x
    x = 4,209,022,530.52/90,254.92
  6. Step 6: Final answer
    x = 46,634.83

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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.