Home / 52,301.06-78,450.90-12,858.54

Finding the Fourth Proportional to 52,301.06, 78,450.90 and 12,858.54

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Solution

The fourth proportional to 52,301.06, 78,450.90 and 12,858.54 is: 19,287.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,301.06 : 78,450.90 = 12,858.54 : x
  2. Step 2: Convert to fraction form
    52,301.06/78,450.90 = 12,858.54/x
  3. Step 3: Cross multiply
    52,301.06x = 78,450.90 × 12,858.54
  4. Step 4: Simplify right side
    52,301.06x = 1,008,764,035.69
  5. Step 5: Solve for x
    x = 1,008,764,035.69/52,301.06
  6. Step 6: Final answer
    x = 19,287.64

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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.