Home / 90,647.57-135,924.66-40,684.83

Finding the Fourth Proportional to 90,647.57, 135,924.66 and 40,684.83

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Solution

The fourth proportional to 90,647.57, 135,924.66 and 40,684.83 is: 61,006.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,647.57 : 135,924.66 = 40,684.83 : x
  2. Step 2: Convert to fraction form
    90,647.57/135,924.66 = 40,684.83/x
  3. Step 3: Cross multiply
    90,647.57x = 135,924.66 × 40,684.83
  4. Step 4: Simplify right side
    90,647.57x = 5,530,071,684.91
  5. Step 5: Solve for x
    x = 5,530,071,684.91/90,647.57
  6. Step 6: Final answer
    x = 61,006.29

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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.