Home / 79,479.05-109,680.75-43,668.95

Finding the Fourth Proportional to 79,479.05, 109,680.75 and 43,668.95

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Solution

The fourth proportional to 79,479.05, 109,680.75 and 43,668.95 is: 60,262.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,479.05 : 109,680.75 = 43,668.95 : x
  2. Step 2: Convert to fraction form
    79,479.05/109,680.75 = 43,668.95/x
  3. Step 3: Cross multiply
    79,479.05x = 109,680.75 × 43,668.95
  4. Step 4: Simplify right side
    79,479.05x = 4,789,642,639.31
  5. Step 5: Solve for x
    x = 4,789,642,639.31/79,479.05
  6. Step 6: Final answer
    x = 60,262.96

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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.