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Finding the Fourth Proportional to 79,807.82, 119,630.93 and 51,745.64

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Solution

The fourth proportional to 79,807.82, 119,630.93 and 51,745.64 is: 77,566.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,807.82 : 119,630.93 = 51,745.64 : x
  2. Step 2: Convert to fraction form
    79,807.82/119,630.93 = 51,745.64/x
  3. Step 3: Cross multiply
    79,807.82x = 119,630.93 × 51,745.64
  4. Step 4: Simplify right side
    79,807.82x = 6,190,378,179.76
  5. Step 5: Solve for x
    x = 6,190,378,179.76/79,807.82
  6. Step 6: Final answer
    x = 77,566.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.