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Finding the Fourth Proportional to 45,691.59, 68,537.39 and 12,411.66

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Solution

The fourth proportional to 45,691.59, 68,537.39 and 12,411.66 is: 18,617.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,691.59 : 68,537.39 = 12,411.66 : x
  2. Step 2: Convert to fraction form
    45,691.59/68,537.39 = 12,411.66/x
  3. Step 3: Cross multiply
    45,691.59x = 68,537.39 × 12,411.66
  4. Step 4: Simplify right side
    45,691.59x = 850,662,719.91
  5. Step 5: Solve for x
    x = 850,662,719.91/45,691.59
  6. Step 6: Final answer
    x = 18,617.49

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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.