Home / 90,449.48-135,694.89-31,285.10

Finding the Fourth Proportional to 90,449.48, 135,694.89 and 31,285.10

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Solution

The fourth proportional to 90,449.48, 135,694.89 and 31,285.10 is: 46,934.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,449.48 : 135,694.89 = 31,285.10 : x
  2. Step 2: Convert to fraction form
    90,449.48/135,694.89 = 31,285.10/x
  3. Step 3: Cross multiply
    90,449.48x = 135,694.89 × 31,285.10
  4. Step 4: Simplify right side
    90,449.48x = 4,245,228,542.38
  5. Step 5: Solve for x
    x = 4,245,228,542.38/90,449.48
  6. Step 6: Final answer
    x = 46,934.80

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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.