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Finding the Fourth Proportional to 80,388.84, 110,808.75 and 63,365.47

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Solution

The fourth proportional to 80,388.84, 110,808.75 and 63,365.47 is: 87,343.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,388.84 : 110,808.75 = 63,365.47 : x
  2. Step 2: Convert to fraction form
    80,388.84/110,808.75 = 63,365.47/x
  3. Step 3: Cross multiply
    80,388.84x = 110,808.75 × 63,365.47
  4. Step 4: Simplify right side
    80,388.84x = 7,021,448,523.86
  5. Step 5: Solve for x
    x = 7,021,448,523.86/80,388.84
  6. Step 6: Final answer
    x = 87,343.57

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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.