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Finding the Fourth Proportional to 68,165.72, 94,075.98 and 39,895.10

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Solution

The fourth proportional to 68,165.72, 94,075.98 and 39,895.10 is: 55,059.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,165.72 : 94,075.98 = 39,895.10 : x
  2. Step 2: Convert to fraction form
    68,165.72/94,075.98 = 39,895.10/x
  3. Step 3: Cross multiply
    68,165.72x = 94,075.98 × 39,895.10
  4. Step 4: Simplify right side
    68,165.72x = 3,753,170,586.91
  5. Step 5: Solve for x
    x = 3,753,170,586.91/68,165.72
  6. Step 6: Final answer
    x = 55,059.50

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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.