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Finding the Fourth Proportional to 68,005.88, 102,026.12 and 39,949.66

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Solution

The fourth proportional to 68,005.88, 102,026.12 and 39,949.66 is: 59,934.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,005.88 : 102,026.12 = 39,949.66 : x
  2. Step 2: Convert to fraction form
    68,005.88/102,026.12 = 39,949.66/x
  3. Step 3: Cross multiply
    68,005.88x = 102,026.12 × 39,949.66
  4. Step 4: Simplify right side
    68,005.88x = 4,075,908,805.12
  5. Step 5: Solve for x
    x = 4,075,908,805.12/68,005.88
  6. Step 6: Final answer
    x = 59,934.65

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1.5x scale

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.