Home / 52,338.83-78,462.29-20,771.17

Finding the Fourth Proportional to 52,338.83, 78,462.29 and 20,771.17

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Solution

The fourth proportional to 52,338.83, 78,462.29 and 20,771.17 is: 31,138.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,338.83 : 78,462.29 = 20,771.17 : x
  2. Step 2: Convert to fraction form
    52,338.83/78,462.29 = 20,771.17/x
  3. Step 3: Cross multiply
    52,338.83x = 78,462.29 × 20,771.17
  4. Step 4: Simplify right side
    52,338.83x = 1,629,753,419.95
  5. Step 5: Solve for x
    x = 1,629,753,419.95/52,338.83
  6. Step 6: Final answer
    x = 31,138.52

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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.