Home / 45,212.33-67,802.90-18,550.79

Finding the Fourth Proportional to 45,212.33, 67,802.90 and 18,550.79

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Solution

The fourth proportional to 45,212.33, 67,802.90 and 18,550.79 is: 27,819.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,212.33 : 67,802.90 = 18,550.79 : x
  2. Step 2: Convert to fraction form
    45,212.33/67,802.90 = 18,550.79/x
  3. Step 3: Cross multiply
    45,212.33x = 67,802.90 × 18,550.79
  4. Step 4: Simplify right side
    45,212.33x = 1,257,796,927.52
  5. Step 5: Solve for x
    x = 1,257,796,927.52/45,212.33
  6. Step 6: Final answer
    x = 27,819.78

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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.