Home / 45,194.91-67,792.77-11,919.71

Finding the Fourth Proportional to 45,194.91, 67,792.77 and 11,919.71

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Solution

The fourth proportional to 45,194.91, 67,792.77 and 11,919.71 is: 17,879.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,194.91 : 67,792.77 = 11,919.71 : x
  2. Step 2: Convert to fraction form
    45,194.91/67,792.77 = 11,919.71/x
  3. Step 3: Cross multiply
    45,194.91x = 67,792.77 × 11,919.71
  4. Step 4: Simplify right side
    45,194.91x = 808,069,819.53
  5. Step 5: Solve for x
    x = 808,069,819.53/45,194.91
  6. Step 6: Final answer
    x = 17,879.66

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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.