Home / 79,056-109,123.20-56,764.80

Finding the Fourth Proportional to 79,056, 109,123.20 and 56,764.80

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Solution

The fourth proportional to 79,056, 109,123.20 and 56,764.80 is: 78,354.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,056 : 109,123.20 = 56,764.80 : x
  2. Step 2: Convert to fraction form
    79,056/109,123.20 = 56,764.80/x
  3. Step 3: Cross multiply
    79,056x = 109,123.20 × 56,764.80
  4. Step 4: Simplify right side
    79,056x = 6,194,356,623.36
  5. Step 5: Solve for x
    x = 6,194,356,623.36/79,056
  6. Step 6: Final answer
    x = 78,354.04

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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.