Home / 49,388.48-68,178.60-31,508

Finding the Fourth Proportional to 49,388.48, 68,178.60 and 31,508

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Solution

The fourth proportional to 49,388.48, 68,178.60 and 31,508 is: 43,495.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,388.48 : 68,178.60 = 31,508 : x
  2. Step 2: Convert to fraction form
    49,388.48/68,178.60 = 31,508/x
  3. Step 3: Cross multiply
    49,388.48x = 68,178.60 × 31,508
  4. Step 4: Simplify right side
    49,388.48x = 2,148,171,328.80
  5. Step 5: Solve for x
    x = 2,148,171,328.80/49,388.48
  6. Step 6: Final answer
    x = 43,495.39

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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.