Home / 57,121.36-78,816.48-36,975.44

Finding the Fourth Proportional to 57,121.36, 78,816.48 and 36,975.44

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Solution

The fourth proportional to 57,121.36, 78,816.48 and 36,975.44 is: 51,018.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,121.36 : 78,816.48 = 36,975.44 : x
  2. Step 2: Convert to fraction form
    57,121.36/78,816.48 = 36,975.44/x
  3. Step 3: Cross multiply
    57,121.36x = 78,816.48 × 36,975.44
  4. Step 4: Simplify right side
    57,121.36x = 2,914,274,027.25
  5. Step 5: Solve for x
    x = 2,914,274,027.25/57,121.36
  6. Step 6: Final answer
    x = 51,018.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.