Home / 52,218.27-78,303.11-18,936.99

Finding the Fourth Proportional to 52,218.27, 78,303.11 and 18,936.99

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Solution

The fourth proportional to 52,218.27, 78,303.11 and 18,936.99 is: 28,396.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,218.27 : 78,303.11 = 18,936.99 : x
  2. Step 2: Convert to fraction form
    52,218.27/78,303.11 = 18,936.99/x
  3. Step 3: Cross multiply
    52,218.27x = 78,303.11 × 18,936.99
  4. Step 4: Simplify right side
    52,218.27x = 1,482,825,116.35
  5. Step 5: Solve for x
    x = 1,482,825,116.35/52,218.27
  6. Step 6: Final answer
    x = 28,396.67

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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.