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Finding the Fourth Proportional to 79,337.00, 119,005.94 and 20,172.71

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Solution

The fourth proportional to 79,337.00, 119,005.94 and 20,172.71 is: 30,259.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,337.00 : 119,005.94 = 20,172.71 : x
  2. Step 2: Convert to fraction form
    79,337.00/119,005.94 = 20,172.71/x
  3. Step 3: Cross multiply
    79,337.00x = 119,005.94 × 20,172.71
  4. Step 4: Simplify right side
    79,337.00x = 2,400,672,663.84
  5. Step 5: Solve for x
    x = 2,400,672,663.84/79,337.00
  6. Step 6: Final answer
    x = 30,259.18

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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.