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Finding the Fourth Proportional to 79,622.84, 109,883.13 and 49,417.89

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Solution

The fourth proportional to 79,622.84, 109,883.13 and 49,417.89 is: 68,198.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,622.84 : 109,883.13 = 49,417.89 : x
  2. Step 2: Convert to fraction form
    79,622.84/109,883.13 = 49,417.89/x
  3. Step 3: Cross multiply
    79,622.84x = 109,883.13 × 49,417.89
  4. Step 4: Simplify right side
    79,622.84x = 5,430,191,634.69
  5. Step 5: Solve for x
    x = 5,430,191,634.69/79,622.84
  6. Step 6: Final answer
    x = 68,198.92

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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.