Home / 90,216.65-135,286.83-27,045.77

Finding the Fourth Proportional to 90,216.65, 135,286.83 and 27,045.77

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Solution

The fourth proportional to 90,216.65, 135,286.83 and 27,045.77 is: 40,557.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,216.65 : 135,286.83 = 27,045.77 : x
  2. Step 2: Convert to fraction form
    90,216.65/135,286.83 = 27,045.77/x
  3. Step 3: Cross multiply
    90,216.65x = 135,286.83 × 27,045.77
  4. Step 4: Simplify right side
    90,216.65x = 3,658,935,811.77
  5. Step 5: Solve for x
    x = 3,658,935,811.77/90,216.65
  6. Step 6: Final answer
    x = 40,557.21

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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.