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Finding the Fourth Proportional to 68,586.88, 94,651.68 and 38,371.20

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Solution

The fourth proportional to 68,586.88, 94,651.68 and 38,371.20 is: 52,953.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,586.88 : 94,651.68 = 38,371.20 : x
  2. Step 2: Convert to fraction form
    68,586.88/94,651.68 = 38,371.20/x
  3. Step 3: Cross multiply
    68,586.88x = 94,651.68 × 38,371.20
  4. Step 4: Simplify right side
    68,586.88x = 3,631,898,543.62
  5. Step 5: Solve for x
    x = 3,631,898,543.62/68,586.88
  6. Step 6: Final answer
    x = 52,953.25

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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.