Home / 63,121.94-87,139.85-39,256.31

Finding the Fourth Proportional to 63,121.94, 87,139.85 and 39,256.31

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Solution

The fourth proportional to 63,121.94, 87,139.85 and 39,256.31 is: 54,193.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,121.94 : 87,139.85 = 39,256.31 : x
  2. Step 2: Convert to fraction form
    63,121.94/87,139.85 = 39,256.31/x
  3. Step 3: Cross multiply
    63,121.94x = 87,139.85 × 39,256.31
  4. Step 4: Simplify right side
    63,121.94x = 3,420,788,332.97
  5. Step 5: Solve for x
    x = 3,420,788,332.97/63,121.94
  6. Step 6: Final answer
    x = 54,193.33

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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.