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Finding the Fourth Proportional to 68,300.77, 102,451.15 and 18,380.98

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Solution

The fourth proportional to 68,300.77, 102,451.15 and 18,380.98 is: 27,571.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,300.77 : 102,451.15 = 18,380.98 : x
  2. Step 2: Convert to fraction form
    68,300.77/102,451.15 = 18,380.98/x
  3. Step 3: Cross multiply
    68,300.77x = 102,451.15 × 18,380.98
  4. Step 4: Simplify right side
    68,300.77x = 1,883,152,165.58
  5. Step 5: Solve for x
    x = 1,883,152,165.58/68,300.77
  6. Step 6: Final answer
    x = 27,571.46

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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.