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Finding the Fourth Proportional to 68,234.79, 94,166.61 and 39,555.39

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Solution

The fourth proportional to 68,234.79, 94,166.61 and 39,555.39 is: 54,587.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,234.79 : 94,166.61 = 39,555.39 : x
  2. Step 2: Convert to fraction form
    68,234.79/94,166.61 = 39,555.39/x
  3. Step 3: Cross multiply
    68,234.79x = 94,166.61 × 39,555.39
  4. Step 4: Simplify right side
    68,234.79x = 3,724,796,983.53
  5. Step 5: Solve for x
    x = 3,724,796,983.53/68,234.79
  6. Step 6: Final answer
    x = 54,587.95

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1.5x scale

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.