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Finding the Fourth Proportional to 68,502.96, 94,534.74 and 40,209.12

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Solution

The fourth proportional to 68,502.96, 94,534.74 and 40,209.12 is: 55,488.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,502.96 : 94,534.74 = 40,209.12 : x
  2. Step 2: Convert to fraction form
    68,502.96/94,534.74 = 40,209.12/x
  3. Step 3: Cross multiply
    68,502.96x = 94,534.74 × 40,209.12
  4. Step 4: Simplify right side
    68,502.96x = 3,801,158,704.83
  5. Step 5: Solve for x
    x = 3,801,158,704.83/68,502.96
  6. Step 6: Final answer
    x = 55,488.97

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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.