Home / 61,234.48-91,855.14-19,120.38

Finding the Fourth Proportional to 61,234.48, 91,855.14 and 19,120.38

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Solution

The fourth proportional to 61,234.48, 91,855.14 and 19,120.38 is: 28,681.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,234.48 : 91,855.14 = 19,120.38 : x
  2. Step 2: Convert to fraction form
    61,234.48/91,855.14 = 19,120.38/x
  3. Step 3: Cross multiply
    61,234.48x = 91,855.14 × 19,120.38
  4. Step 4: Simplify right side
    61,234.48x = 1,756,305,181.75
  5. Step 5: Solve for x
    x = 1,756,305,181.75/61,234.48
  6. Step 6: Final answer
    x = 28,681.64

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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.