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Finding the Fourth Proportional to 47,576, 65,654.88 and 28,713.12

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Solution

The fourth proportional to 47,576, 65,654.88 and 28,713.12 is: 39,624.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,576 : 65,654.88 = 28,713.12 : x
  2. Step 2: Convert to fraction form
    47,576/65,654.88 = 28,713.12/x
  3. Step 3: Cross multiply
    47,576x = 65,654.88 × 28,713.12
  4. Step 4: Simplify right side
    47,576x = 1,885,156,448.03
  5. Step 5: Solve for x
    x = 1,885,156,448.03/47,576
  6. Step 6: Final answer
    x = 39,624.11

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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.