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Finding the Fourth Proportional to 68,613.73, 102,920.60 and 45,234.70

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Solution

The fourth proportional to 68,613.73, 102,920.60 and 45,234.70 is: 67,852.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,613.73 : 102,920.60 = 45,234.70 : x
  2. Step 2: Convert to fraction form
    68,613.73/102,920.60 = 45,234.70/x
  3. Step 3: Cross multiply
    68,613.73x = 102,920.60 × 45,234.70
  4. Step 4: Simplify right side
    68,613.73x = 4,655,582,464.82
  5. Step 5: Solve for x
    x = 4,655,582,464.82/68,613.73
  6. Step 6: Final answer
    x = 67,852.05

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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.