Home / 79,118.12-109,184.03-43,307.36

Finding the Fourth Proportional to 79,118.12, 109,184.03 and 43,307.36

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Solution

The fourth proportional to 79,118.12, 109,184.03 and 43,307.36 is: 59,764.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,118.12 : 109,184.03 = 43,307.36 : x
  2. Step 2: Convert to fraction form
    79,118.12/109,184.03 = 43,307.36/x
  3. Step 3: Cross multiply
    79,118.12x = 109,184.03 × 43,307.36
  4. Step 4: Simplify right side
    79,118.12x = 4,728,472,146.45
  5. Step 5: Solve for x
    x = 4,728,472,146.45/79,118.12
  6. Step 6: Final answer
    x = 59,764.72

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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.