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Finding the Fourth Proportional to 68,625.61, 102,896.70 and 28,596.22

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Solution

The fourth proportional to 68,625.61, 102,896.70 and 28,596.22 is: 42,876.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,625.61 : 102,896.70 = 28,596.22 : x
  2. Step 2: Convert to fraction form
    68,625.61/102,896.70 = 28,596.22/x
  3. Step 3: Cross multiply
    68,625.61x = 102,896.70 × 28,596.22
  4. Step 4: Simplify right side
    68,625.61x = 2,942,457,045.64
  5. Step 5: Solve for x
    x = 2,942,457,045.64/68,625.61
  6. Step 6: Final answer
    x = 42,876.95

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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.