Home / 79,067.12-109,120.13-43,262.51

Finding the Fourth Proportional to 79,067.12, 109,120.13 and 43,262.51

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Solution

The fourth proportional to 79,067.12, 109,120.13 and 43,262.51 is: 59,706.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,067.12 : 109,120.13 = 43,262.51 : x
  2. Step 2: Convert to fraction form
    79,067.12/109,120.13 = 43,262.51/x
  3. Step 3: Cross multiply
    79,067.12x = 109,120.13 × 43,262.51
  4. Step 4: Simplify right side
    79,067.12x = 4,720,809,953.41
  5. Step 5: Solve for x
    x = 4,720,809,953.41/79,067.12
  6. Step 6: Final answer
    x = 59,706.36

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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.