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Finding the Fourth Proportional to 71,027.09, 106,529.00 and 28,905.47

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Solution

The fourth proportional to 71,027.09, 106,529.00 and 28,905.47 is: 43,353.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,027.09 : 106,529.00 = 28,905.47 : x
  2. Step 2: Convert to fraction form
    71,027.09/106,529.00 = 28,905.47/x
  3. Step 3: Cross multiply
    71,027.09x = 106,529.00 × 28,905.47
  4. Step 4: Simplify right side
    71,027.09x = 3,079,270,136.46
  5. Step 5: Solve for x
    x = 3,079,270,136.46/71,027.09
  6. Step 6: Final answer
    x = 43,353.46

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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.