Home / 77,493.52-115,974.85-53,827.75

Finding the Fourth Proportional to 77,493.52, 115,974.85 and 53,827.75

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Solution

The fourth proportional to 77,493.52, 115,974.85 and 53,827.75 is: 80,557.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,493.52 : 115,974.85 = 53,827.75 : x
  2. Step 2: Convert to fraction form
    77,493.52/115,974.85 = 53,827.75/x
  3. Step 3: Cross multiply
    77,493.52x = 115,974.85 × 53,827.75
  4. Step 4: Simplify right side
    77,493.52x = 6,242,665,232.09
  5. Step 5: Solve for x
    x = 6,242,665,232.09/77,493.52
  6. Step 6: Final answer
    x = 80,557.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.