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Finding the Fourth Proportional to 66,703.50, 92,049.62 and 39,852

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Solution

The fourth proportional to 66,703.50, 92,049.62 and 39,852 is: 54,995.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,703.50 : 92,049.62 = 39,852 : x
  2. Step 2: Convert to fraction form
    66,703.50/92,049.62 = 39,852/x
  3. Step 3: Cross multiply
    66,703.50x = 92,049.62 × 39,852
  4. Step 4: Simplify right side
    66,703.50x = 3,668,361,256.98
  5. Step 5: Solve for x
    x = 3,668,361,256.98/66,703.50
  6. Step 6: Final answer
    x = 54,995.03

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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.