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Finding the Fourth Proportional to 79,745.16, 110,051.36 and 43,934.40

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Solution

The fourth proportional to 79,745.16, 110,051.36 and 43,934.40 is: 60,631.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,745.16 : 110,051.36 = 43,934.40 : x
  2. Step 2: Convert to fraction form
    79,745.16/110,051.36 = 43,934.40/x
  3. Step 3: Cross multiply
    79,745.16x = 110,051.36 × 43,934.40
  4. Step 4: Simplify right side
    79,745.16x = 4,835,040,415.87
  5. Step 5: Solve for x
    x = 4,835,040,415.87/79,745.16
  6. Step 6: Final answer
    x = 60,631.15

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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.