Home / 90,481.68-135,700.65-37,930.50

Finding the Fourth Proportional to 90,481.68, 135,700.65 and 37,930.50

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Solution

The fourth proportional to 90,481.68, 135,700.65 and 37,930.50 is: 56,886.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,481.68 : 135,700.65 = 37,930.50 : x
  2. Step 2: Convert to fraction form
    90,481.68/135,700.65 = 37,930.50/x
  3. Step 3: Cross multiply
    90,481.68x = 135,700.65 × 37,930.50
  4. Step 4: Simplify right side
    90,481.68x = 5,147,193,504.83
  5. Step 5: Solve for x
    x = 5,147,193,504.83/90,481.68
  6. Step 6: Final answer
    x = 56,886.58

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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.