Home / 90,235.56-135,351.74-31,069.92

Finding the Fourth Proportional to 90,235.56, 135,351.74 and 31,069.92

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Solution

The fourth proportional to 90,235.56, 135,351.74 and 31,069.92 is: 46,604.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,235.56 : 135,351.74 = 31,069.92 : x
  2. Step 2: Convert to fraction form
    90,235.56/135,351.74 = 31,069.92/x
  3. Step 3: Cross multiply
    90,235.56x = 135,351.74 × 31,069.92
  4. Step 4: Simplify right side
    90,235.56x = 4,205,367,578.31
  5. Step 5: Solve for x
    x = 4,205,367,578.31/90,235.56
  6. Step 6: Final answer
    x = 46,604.33

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1.5x scale

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.