Home / 52,781.24-72,836.55-28,907.40

Finding the Fourth Proportional to 52,781.24, 72,836.55 and 28,907.40

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Solution

The fourth proportional to 52,781.24, 72,836.55 and 28,907.40 is: 39,891.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,781.24 : 72,836.55 = 28,907.40 : x
  2. Step 2: Convert to fraction form
    52,781.24/72,836.55 = 28,907.40/x
  3. Step 3: Cross multiply
    52,781.24x = 72,836.55 × 28,907.40
  4. Step 4: Simplify right side
    52,781.24x = 2,105,515,285.47
  5. Step 5: Solve for x
    x = 2,105,515,285.47/52,781.24
  6. Step 6: Final answer
    x = 39,891.36

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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.