Home / 79,076.45-109,123.80-43,266.35

Finding the Fourth Proportional to 79,076.45, 109,123.80 and 43,266.35

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Solution

The fourth proportional to 79,076.45, 109,123.80 and 43,266.35 is: 59,706.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,076.45 : 109,123.80 = 43,266.35 : x
  2. Step 2: Convert to fraction form
    79,076.45/109,123.80 = 43,266.35/x
  3. Step 3: Cross multiply
    79,076.45x = 109,123.80 × 43,266.35
  4. Step 4: Simplify right side
    79,076.45x = 4,721,388,524.13
  5. Step 5: Solve for x
    x = 4,721,388,524.13/79,076.45
  6. Step 6: Final answer
    x = 59,706.63

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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.