Home / 51,804.52-71,513.38-39,863.40

Finding the Fourth Proportional to 51,804.52, 71,513.38 and 39,863.40

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Solution

The fourth proportional to 51,804.52, 71,513.38 and 39,863.40 is: 55,029.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,804.52 : 71,513.38 = 39,863.40 : x
  2. Step 2: Convert to fraction form
    51,804.52/71,513.38 = 39,863.40/x
  3. Step 3: Cross multiply
    51,804.52x = 71,513.38 × 39,863.40
  4. Step 4: Simplify right side
    51,804.52x = 2,850,766,472.29
  5. Step 5: Solve for x
    x = 2,850,766,472.29/51,804.52
  6. Step 6: Final answer
    x = 55,029.30

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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.