Home / 86,874.48-119,897.28-49,141.44

Finding the Fourth Proportional to 86,874.48, 119,897.28 and 49,141.44

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Solution

The fourth proportional to 86,874.48, 119,897.28 and 49,141.44 is: 67,821.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,874.48 : 119,897.28 = 49,141.44 : x
  2. Step 2: Convert to fraction form
    86,874.48/119,897.28 = 49,141.44/x
  3. Step 3: Cross multiply
    86,874.48x = 119,897.28 × 49,141.44
  4. Step 4: Simplify right side
    86,874.48x = 5,891,924,991.28
  5. Step 5: Solve for x
    x = 5,891,924,991.28/86,874.48
  6. Step 6: Final answer
    x = 67,821.13

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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.