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Finding the Fourth Proportional to 79,705, 109,992.90 and 44,377

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Solution

The fourth proportional to 79,705, 109,992.90 and 44,377 is: 61,240.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,705 : 109,992.90 = 44,377 : x
  2. Step 2: Convert to fraction form
    79,705/109,992.90 = 44,377/x
  3. Step 3: Cross multiply
    79,705x = 109,992.90 × 44,377
  4. Step 4: Simplify right side
    79,705x = 4,881,154,923.30
  5. Step 5: Solve for x
    x = 4,881,154,923.30/79,705
  6. Step 6: Final answer
    x = 61,240.26

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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.