Home / 57,240.28-78,987.66-31,744.25

Finding the Fourth Proportional to 57,240.28, 78,987.66 and 31,744.25

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Solution

The fourth proportional to 57,240.28, 78,987.66 and 31,744.25 is: 43,804.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,240.28 : 78,987.66 = 31,744.25 : x
  2. Step 2: Convert to fraction form
    57,240.28/78,987.66 = 31,744.25/x
  3. Step 3: Cross multiply
    57,240.28x = 78,987.66 × 31,744.25
  4. Step 4: Simplify right side
    57,240.28x = 2,507,404,252.49
  5. Step 5: Solve for x
    x = 2,507,404,252.49/57,240.28
  6. Step 6: Final answer
    x = 43,804.89

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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.