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Finding the Fourth Proportional to 79,856.63, 119,749.87 and 29,901.69

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Solution

The fourth proportional to 79,856.63, 119,749.87 and 29,901.69 is: 44,839.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,856.63 : 119,749.87 = 29,901.69 : x
  2. Step 2: Convert to fraction form
    79,856.63/119,749.87 = 29,901.69/x
  3. Step 3: Cross multiply
    79,856.63x = 119,749.87 × 29,901.69
  4. Step 4: Simplify right side
    79,856.63x = 3,580,723,490.28
  5. Step 5: Solve for x
    x = 3,580,723,490.28/79,856.63
  6. Step 6: Final answer
    x = 44,839.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.