Home / 52,091.16-78,105.24-20,463.36

Finding the Fourth Proportional to 52,091.16, 78,105.24 and 20,463.36

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Solution

The fourth proportional to 52,091.16, 78,105.24 and 20,463.36 is: 30,682.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,091.16 : 78,105.24 = 20,463.36 : x
  2. Step 2: Convert to fraction form
    52,091.16/78,105.24 = 20,463.36/x
  3. Step 3: Cross multiply
    52,091.16x = 78,105.24 × 20,463.36
  4. Step 4: Simplify right side
    52,091.16x = 1,598,295,644.01
  5. Step 5: Solve for x
    x = 1,598,295,644.01/52,091.16
  6. Step 6: Final answer
    x = 30,682.67

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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.