Home / 52,102.62-78,133.14-18,811.08

Finding the Fourth Proportional to 52,102.62, 78,133.14 and 18,811.08

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Solution

The fourth proportional to 52,102.62, 78,133.14 and 18,811.08 is: 28,209.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,102.62 : 78,133.14 = 18,811.08 : x
  2. Step 2: Convert to fraction form
    52,102.62/78,133.14 = 18,811.08/x
  3. Step 3: Cross multiply
    52,102.62x = 78,133.14 × 18,811.08
  4. Step 4: Simplify right side
    52,102.62x = 1,469,768,747.19
  5. Step 5: Solve for x
    x = 1,469,768,747.19/52,102.62
  6. Step 6: Final answer
    x = 28,209.11

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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.