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Finding the Fourth Proportional to 82,818.37, 114,289.89 and 47,008.99

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Solution

The fourth proportional to 82,818.37, 114,289.89 and 47,008.99 is: 64,872.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,818.37 : 114,289.89 = 47,008.99 : x
  2. Step 2: Convert to fraction form
    82,818.37/114,289.89 = 47,008.99/x
  3. Step 3: Cross multiply
    82,818.37x = 114,289.89 × 47,008.99
  4. Step 4: Simplify right side
    82,818.37x = 5,372,652,296.11
  5. Step 5: Solve for x
    x = 5,372,652,296.11/82,818.37
  6. Step 6: Final answer
    x = 64,872.71

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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.