Home / 52,764.12-79,138.85-13,318.83

Finding the Fourth Proportional to 52,764.12, 79,138.85 and 13,318.83

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Solution

The fourth proportional to 52,764.12, 79,138.85 and 13,318.83 is: 19,976.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,764.12 : 79,138.85 = 13,318.83 : x
  2. Step 2: Convert to fraction form
    52,764.12/79,138.85 = 13,318.83/x
  3. Step 3: Cross multiply
    52,764.12x = 79,138.85 × 13,318.83
  4. Step 4: Simplify right side
    52,764.12x = 1,054,036,822.95
  5. Step 5: Solve for x
    x = 1,054,036,822.95/52,764.12
  6. Step 6: Final answer
    x = 19,976.39

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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.