Home / 90,552.38-135,836.06-28,222.88

Finding the Fourth Proportional to 90,552.38, 135,836.06 and 28,222.88

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Solution

The fourth proportional to 90,552.38, 135,836.06 and 28,222.88 is: 42,336.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,552.38 : 135,836.06 = 28,222.88 : x
  2. Step 2: Convert to fraction form
    90,552.38/135,836.06 = 28,222.88/x
  3. Step 3: Cross multiply
    90,552.38x = 135,836.06 × 28,222.88
  4. Step 4: Simplify right side
    90,552.38x = 3,833,684,000.76
  5. Step 5: Solve for x
    x = 3,833,684,000.76/90,552.38
  6. Step 6: Final answer
    x = 42,336.65

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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.