Home / 52,635.96-78,985.20-19,379.39

Finding the Fourth Proportional to 52,635.96, 78,985.20 and 19,379.39

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Solution

The fourth proportional to 52,635.96, 78,985.20 and 19,379.39 is: 29,080.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,635.96 : 78,985.20 = 19,379.39 : x
  2. Step 2: Convert to fraction form
    52,635.96/78,985.20 = 19,379.39/x
  3. Step 3: Cross multiply
    52,635.96x = 78,985.20 × 19,379.39
  4. Step 4: Simplify right side
    52,635.96x = 1,530,684,600.10
  5. Step 5: Solve for x
    x = 1,530,684,600.10/52,635.96
  6. Step 6: Final answer
    x = 29,080.59

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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.