Home / 79,115.11-109,178.97-43,307.39

Finding the Fourth Proportional to 79,115.11, 109,178.97 and 43,307.39

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Solution

The fourth proportional to 79,115.11, 109,178.97 and 43,307.39 is: 59,764.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,115.11 : 109,178.97 = 43,307.39 : x
  2. Step 2: Convert to fraction form
    79,115.11/109,178.97 = 43,307.39/x
  3. Step 3: Cross multiply
    79,115.11x = 109,178.97 × 43,307.39
  4. Step 4: Simplify right side
    79,115.11x = 4,728,255,525.29
  5. Step 5: Solve for x
    x = 4,728,255,525.29/79,115.11
  6. Step 6: Final answer
    x = 59,764.26

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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.