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Finding the Fourth Proportional to 68,646.80, 94,727.88 and 38,426.96

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Solution

The fourth proportional to 68,646.80, 94,727.88 and 38,426.96 is: 53,026.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,646.80 : 94,727.88 = 38,426.96 : x
  2. Step 2: Convert to fraction form
    68,646.80/94,727.88 = 38,426.96/x
  3. Step 3: Cross multiply
    68,646.80x = 94,727.88 × 38,426.96
  4. Step 4: Simplify right side
    68,646.80x = 3,640,104,455.64
  5. Step 5: Solve for x
    x = 3,640,104,455.64/68,646.80
  6. Step 6: Final answer
    x = 53,026.57

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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.