Home / 52,138.80-71,951.64-28,265.40

Finding the Fourth Proportional to 52,138.80, 71,951.64 and 28,265.40

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Solution

The fourth proportional to 52,138.80, 71,951.64 and 28,265.40 is: 39,006.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,138.80 : 71,951.64 = 28,265.40 : x
  2. Step 2: Convert to fraction form
    52,138.80/71,951.64 = 28,265.40/x
  3. Step 3: Cross multiply
    52,138.80x = 71,951.64 × 28,265.40
  4. Step 4: Simplify right side
    52,138.80x = 2,033,741,885.26
  5. Step 5: Solve for x
    x = 2,033,741,885.26/52,138.80
  6. Step 6: Final answer
    x = 39,006.30

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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.