Home / 79,431.03-109,616.09-43,620.93

Finding the Fourth Proportional to 79,431.03, 109,616.09 and 43,620.93

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Solution

The fourth proportional to 79,431.03, 109,616.09 and 43,620.93 is: 60,197.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,431.03 : 109,616.09 = 43,620.93 : x
  2. Step 2: Convert to fraction form
    79,431.03/109,616.09 = 43,620.93/x
  3. Step 3: Cross multiply
    79,431.03x = 109,616.09 × 43,620.93
  4. Step 4: Simplify right side
    79,431.03x = 4,781,555,570.66
  5. Step 5: Solve for x
    x = 4,781,555,570.66/79,431.03
  6. Step 6: Final answer
    x = 60,197.58

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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.