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Finding the Fourth Proportional to 68,602.72, 94,641.70 and 40,295.64

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Solution

The fourth proportional to 68,602.72, 94,641.70 and 40,295.64 is: 55,590.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,602.72 : 94,641.70 = 40,295.64 : x
  2. Step 2: Convert to fraction form
    68,602.72/94,641.70 = 40,295.64/x
  3. Step 3: Cross multiply
    68,602.72x = 94,641.70 × 40,295.64
  4. Step 4: Simplify right side
    68,602.72x = 3,813,647,872.19
  5. Step 5: Solve for x
    x = 3,813,647,872.19/68,602.72
  6. Step 6: Final answer
    x = 55,590.33

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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.