Home / 52,081.50-78,135.48-15,145.50

Finding the Fourth Proportional to 52,081.50, 78,135.48 and 15,145.50

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Solution

The fourth proportional to 52,081.50, 78,135.48 and 15,145.50 is: 22,722.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,081.50 : 78,135.48 = 15,145.50 : x
  2. Step 2: Convert to fraction form
    52,081.50/78,135.48 = 15,145.50/x
  3. Step 3: Cross multiply
    52,081.50x = 78,135.48 × 15,145.50
  4. Step 4: Simplify right side
    52,081.50x = 1,183,400,912.34
  5. Step 5: Solve for x
    x = 1,183,400,912.34/52,081.50
  6. Step 6: Final answer
    x = 22,722.10

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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.