Home / 57,207.94-78,859.44-40,164.36

Finding the Fourth Proportional to 57,207.94, 78,859.44 and 40,164.36

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Solution

The fourth proportional to 57,207.94, 78,859.44 and 40,164.36 is: 55,365.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,207.94 : 78,859.44 = 40,164.36 : x
  2. Step 2: Convert to fraction form
    57,207.94/78,859.44 = 40,164.36/x
  3. Step 3: Cross multiply
    57,207.94x = 78,859.44 × 40,164.36
  4. Step 4: Simplify right side
    57,207.94x = 3,167,338,937.56
  5. Step 5: Solve for x
    x = 3,167,338,937.56/57,207.94
  6. Step 6: Final answer
    x = 55,365.37

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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.