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Finding the Fourth Proportional to 64,979.19, 97,472.22 and 18,235.71

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Solution

The fourth proportional to 64,979.19, 97,472.22 and 18,235.71 is: 27,354.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,979.19 : 97,472.22 = 18,235.71 : x
  2. Step 2: Convert to fraction form
    64,979.19/97,472.22 = 18,235.71/x
  3. Step 3: Cross multiply
    64,979.19x = 97,472.22 × 18,235.71
  4. Step 4: Simplify right side
    64,979.19x = 1,777,475,136.98
  5. Step 5: Solve for x
    x = 1,777,475,136.98/64,979.19
  6. Step 6: Final answer
    x = 27,354.53

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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.