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Finding the Fourth Proportional to 47,790, 65,951.87 and 26,281.36

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Solution

The fourth proportional to 47,790, 65,951.87 and 26,281.36 is: 36,269.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,790 : 65,951.87 = 26,281.36 : x
  2. Step 2: Convert to fraction form
    47,790/65,951.87 = 26,281.36/x
  3. Step 3: Cross multiply
    47,790x = 65,951.87 × 26,281.36
  4. Step 4: Simplify right side
    47,790x = 1,733,304,937.01
  5. Step 5: Solve for x
    x = 1,733,304,937.01/47,790
  6. Step 6: Final answer
    x = 36,269.20

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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.