Home / 82,125.54-123,187.23-19,795.50

Finding the Fourth Proportional to 82,125.54, 123,187.23 and 19,795.50

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Solution

The fourth proportional to 82,125.54, 123,187.23 and 19,795.50 is: 29,692.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,125.54 : 123,187.23 = 19,795.50 : x
  2. Step 2: Convert to fraction form
    82,125.54/123,187.23 = 19,795.50/x
  3. Step 3: Cross multiply
    82,125.54x = 123,187.23 × 19,795.50
  4. Step 4: Simplify right side
    82,125.54x = 2,438,552,811.47
  5. Step 5: Solve for x
    x = 2,438,552,811.47/82,125.54
  6. Step 6: Final answer
    x = 29,692.99

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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.