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Finding the Fourth Proportional to 79,518.62, 109,738.08 and 45,538.11

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Solution

The fourth proportional to 79,518.62, 109,738.08 and 45,538.11 is: 62,843.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,518.62 : 109,738.08 = 45,538.11 : x
  2. Step 2: Convert to fraction form
    79,518.62/109,738.08 = 45,538.11/x
  3. Step 3: Cross multiply
    79,518.62x = 109,738.08 × 45,538.11
  4. Step 4: Simplify right side
    79,518.62x = 4,997,264,758.23
  5. Step 5: Solve for x
    x = 4,997,264,758.23/79,518.62
  6. Step 6: Final answer
    x = 62,843.96

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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.