Home / 52,791.20-72,851.87-28,918.73

Finding the Fourth Proportional to 52,791.20, 72,851.87 and 28,918.73

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Solution

The fourth proportional to 52,791.20, 72,851.87 and 28,918.73 is: 39,907.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,791.20 : 72,851.87 = 28,918.73 : x
  2. Step 2: Convert to fraction form
    52,791.20/72,851.87 = 28,918.73/x
  3. Step 3: Cross multiply
    52,791.20x = 72,851.87 × 28,918.73
  4. Step 4: Simplify right side
    52,791.20x = 2,106,783,049.67
  5. Step 5: Solve for x
    x = 2,106,783,049.67/52,791.20
  6. Step 6: Final answer
    x = 39,907.85

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1.5x scale

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.