Home / 52,778.12-79,123.43-19,491.98

Finding the Fourth Proportional to 52,778.12, 79,123.43 and 19,491.98

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Solution

The fourth proportional to 52,778.12, 79,123.43 and 19,491.98 is: 29,221.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,778.12 : 79,123.43 = 19,491.98 : x
  2. Step 2: Convert to fraction form
    52,778.12/79,123.43 = 19,491.98/x
  3. Step 3: Cross multiply
    52,778.12x = 79,123.43 × 19,491.98
  4. Step 4: Simplify right side
    52,778.12x = 1,542,271,968.20
  5. Step 5: Solve for x
    x = 1,542,271,968.20/52,778.12
  6. Step 6: Final answer
    x = 29,221.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.