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Finding the Fourth Proportional to 79,798.88, 110,121.78 and 45,812.90

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Solution

The fourth proportional to 79,798.88, 110,121.78 and 45,812.90 is: 63,221.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,798.88 : 110,121.78 = 45,812.90 : x
  2. Step 2: Convert to fraction form
    79,798.88/110,121.78 = 45,812.90/x
  3. Step 3: Cross multiply
    79,798.88x = 110,121.78 × 45,812.90
  4. Step 4: Simplify right side
    79,798.88x = 5,044,998,094.96
  5. Step 5: Solve for x
    x = 5,044,998,094.96/79,798.88
  6. Step 6: Final answer
    x = 63,221.41

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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.