Home / 90,194.92-135,288.33-31,030.90

Finding the Fourth Proportional to 90,194.92, 135,288.33 and 31,030.90

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Solution

The fourth proportional to 90,194.92, 135,288.33 and 31,030.90 is: 46,544.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,194.92 : 135,288.33 = 31,030.90 : x
  2. Step 2: Convert to fraction form
    90,194.92/135,288.33 = 31,030.90/x
  3. Step 3: Cross multiply
    90,194.92x = 135,288.33 × 31,030.90
  4. Step 4: Simplify right side
    90,194.92x = 4,198,118,639.40
  5. Step 5: Solve for x
    x = 4,198,118,639.40/90,194.92
  6. Step 6: Final answer
    x = 46,544.96

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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.