Home / 51,977.25-71,728.55-28,103.86

Finding the Fourth Proportional to 51,977.25, 71,728.55 and 28,103.86

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Solution

The fourth proportional to 51,977.25, 71,728.55 and 28,103.86 is: 38,783.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,977.25 : 71,728.55 = 28,103.86 : x
  2. Step 2: Convert to fraction form
    51,977.25/71,728.55 = 28,103.86/x
  3. Step 3: Cross multiply
    51,977.25x = 71,728.55 × 28,103.86
  4. Step 4: Simplify right side
    51,977.25x = 2,015,849,127.20
  5. Step 5: Solve for x
    x = 2,015,849,127.20/51,977.25
  6. Step 6: Final answer
    x = 38,783.30

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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.