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Finding the Fourth Proportional to 68,771.52, 94,904.64 and 38,557.08

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Solution

The fourth proportional to 68,771.52, 94,904.64 and 38,557.08 is: 53,208.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,771.52 : 94,904.64 = 38,557.08 : x
  2. Step 2: Convert to fraction form
    68,771.52/94,904.64 = 38,557.08/x
  3. Step 3: Cross multiply
    68,771.52x = 94,904.64 × 38,557.08
  4. Step 4: Simplify right side
    68,771.52x = 3,659,245,796.85
  5. Step 5: Solve for x
    x = 3,659,245,796.85/68,771.52
  6. Step 6: Final answer
    x = 53,208.74

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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.