Home / 45,138.92-62,226.42-31,668.44

Finding the Fourth Proportional to 45,138.92, 62,226.42 and 31,668.44

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Solution

The fourth proportional to 45,138.92, 62,226.42 and 31,668.44 is: 43,656.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,138.92 : 62,226.42 = 31,668.44 : x
  2. Step 2: Convert to fraction form
    45,138.92/62,226.42 = 31,668.44/x
  3. Step 3: Cross multiply
    45,138.92x = 62,226.42 × 31,668.44
  4. Step 4: Simplify right side
    45,138.92x = 1,970,613,648.18
  5. Step 5: Solve for x
    x = 1,970,613,648.18/45,138.92
  6. Step 6: Final answer
    x = 43,656.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.