Home / 90,260.19-135,403.25-31,079.97

Finding the Fourth Proportional to 90,260.19, 135,403.25 and 31,079.97

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Solution

The fourth proportional to 90,260.19, 135,403.25 and 31,079.97 is: 46,624.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,260.19 : 135,403.25 = 31,079.97 : x
  2. Step 2: Convert to fraction form
    90,260.19/135,403.25 = 31,079.97/x
  3. Step 3: Cross multiply
    90,260.19x = 135,403.25 × 31,079.97
  4. Step 4: Simplify right side
    90,260.19x = 4,208,328,792.50
  5. Step 5: Solve for x
    x = 4,208,328,792.50/90,260.19
  6. Step 6: Final answer
    x = 46,624.42

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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.