Home / 90,194.49-135,291.69-31,030.65

Finding the Fourth Proportional to 90,194.49, 135,291.69 and 31,030.65

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Solution

The fourth proportional to 90,194.49, 135,291.69 and 31,030.65 is: 46,545.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,194.49 : 135,291.69 = 31,030.65 : x
  2. Step 2: Convert to fraction form
    90,194.49/135,291.69 = 31,030.65/x
  3. Step 3: Cross multiply
    90,194.49x = 135,291.69 × 31,030.65
  4. Step 4: Simplify right side
    90,194.49x = 4,198,189,080.30
  5. Step 5: Solve for x
    x = 4,198,189,080.30/90,194.49
  6. Step 6: Final answer
    x = 46,545.96

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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.