Home / 71,918.64-107,839.98-38,203.56

Finding the Fourth Proportional to 71,918.64, 107,839.98 and 38,203.56

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Solution

The fourth proportional to 71,918.64, 107,839.98 and 38,203.56 is: 57,285.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,918.64 : 107,839.98 = 38,203.56 : x
  2. Step 2: Convert to fraction form
    71,918.64/107,839.98 = 38,203.56/x
  3. Step 3: Cross multiply
    71,918.64x = 107,839.98 × 38,203.56
  4. Step 4: Simplify right side
    71,918.64x = 4,119,871,146.33
  5. Step 5: Solve for x
    x = 4,119,871,146.33/71,918.64
  6. Step 6: Final answer
    x = 57,285.16

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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.