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Finding the Fourth Proportional to 79,285.40, 109,414.90 and 43,475.32

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Solution

The fourth proportional to 79,285.40, 109,414.90 and 43,475.32 is: 59,996.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,285.40 : 109,414.90 = 43,475.32 : x
  2. Step 2: Convert to fraction form
    79,285.40/109,414.90 = 43,475.32/x
  3. Step 3: Cross multiply
    79,285.40x = 109,414.90 × 43,475.32
  4. Step 4: Simplify right side
    79,285.40x = 4,756,847,790.27
  5. Step 5: Solve for x
    x = 4,756,847,790.27/79,285.40
  6. Step 6: Final answer
    x = 59,996.52

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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.