Home / 81,895.08-122,835.54-49,865.88

Finding the Fourth Proportional to 81,895.08, 122,835.54 and 49,865.88

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Solution

The fourth proportional to 81,895.08, 122,835.54 and 49,865.88 is: 74,794.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,895.08 : 122,835.54 = 49,865.88 : x
  2. Step 2: Convert to fraction form
    81,895.08/122,835.54 = 49,865.88/x
  3. Step 3: Cross multiply
    81,895.08x = 122,835.54 × 49,865.88
  4. Step 4: Simplify right side
    81,895.08x = 6,125,302,297.38
  5. Step 5: Solve for x
    x = 6,125,302,297.38/81,895.08
  6. Step 6: Final answer
    x = 74,794.51

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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.