Home / 63,139.08-87,163.44-39,273.44

Finding the Fourth Proportional to 63,139.08, 87,163.44 and 39,273.44

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Solution

The fourth proportional to 63,139.08, 87,163.44 and 39,273.44 is: 54,216.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,139.08 : 87,163.44 = 39,273.44 : x
  2. Step 2: Convert to fraction form
    63,139.08/87,163.44 = 39,273.44/x
  3. Step 3: Cross multiply
    63,139.08x = 87,163.44 × 39,273.44
  4. Step 4: Simplify right side
    63,139.08x = 3,423,208,131.03
  5. Step 5: Solve for x
    x = 3,423,208,131.03/63,139.08
  6. Step 6: Final answer
    x = 54,216.95

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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.