Home / 79,515.39-109,732.10-43,216.84

Finding the Fourth Proportional to 79,515.39, 109,732.10 and 43,216.84

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Solution

The fourth proportional to 79,515.39, 109,732.10 and 43,216.84 is: 59,639.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,515.39 : 109,732.10 = 43,216.84 : x
  2. Step 2: Convert to fraction form
    79,515.39/109,732.10 = 43,216.84/x
  3. Step 3: Cross multiply
    79,515.39x = 109,732.10 × 43,216.84
  4. Step 4: Simplify right side
    79,515.39x = 4,742,274,608.56
  5. Step 5: Solve for x
    x = 4,742,274,608.56/79,515.39
  6. Step 6: Final answer
    x = 59,639.71

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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.