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Finding the Fourth Proportional to 47,900, 66,104.02 and 26,679.26

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Solution

The fourth proportional to 47,900, 66,104.02 and 26,679.26 is: 36,818.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,900 : 66,104.02 = 26,679.26 : x
  2. Step 2: Convert to fraction form
    47,900/66,104.02 = 26,679.26/x
  3. Step 3: Cross multiply
    47,900x = 66,104.02 × 26,679.26
  4. Step 4: Simplify right side
    47,900x = 1,763,606,336.63
  5. Step 5: Solve for x
    x = 1,763,606,336.63/47,900
  6. Step 6: Final answer
    x = 36,818.50

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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.