Home / 71,222.36-98,286.27-39,390.44

Finding the Fourth Proportional to 71,222.36, 98,286.27 and 39,390.44

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Solution

The fourth proportional to 71,222.36, 98,286.27 and 39,390.44 is: 54,358.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,222.36 : 98,286.27 = 39,390.44 : x
  2. Step 2: Convert to fraction form
    71,222.36/98,286.27 = 39,390.44/x
  3. Step 3: Cross multiply
    71,222.36x = 98,286.27 × 39,390.44
  4. Step 4: Simplify right side
    71,222.36x = 3,871,538,929.83
  5. Step 5: Solve for x
    x = 3,871,538,929.83/71,222.36
  6. Step 6: Final answer
    x = 54,358.48

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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.