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Finding the Fourth Proportional to 45,194.79, 67,792.58 and 11,919.58

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Solution

The fourth proportional to 45,194.79, 67,792.58 and 11,919.58 is: 17,879.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,194.79 : 67,792.58 = 11,919.58 : x
  2. Step 2: Convert to fraction form
    45,194.79/67,792.58 = 11,919.58/x
  3. Step 3: Cross multiply
    45,194.79x = 67,792.58 × 11,919.58
  4. Step 4: Simplify right side
    45,194.79x = 808,059,110.52
  5. Step 5: Solve for x
    x = 808,059,110.52/45,194.79
  6. Step 6: Final answer
    x = 17,879.48

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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.