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Finding the Fourth Proportional to 72,965.96, 100,693.92 and 41,134.88

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Solution

The fourth proportional to 72,965.96, 100,693.92 and 41,134.88 is: 56,766.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,965.96 : 100,693.92 = 41,134.88 : x
  2. Step 2: Convert to fraction form
    72,965.96/100,693.92 = 41,134.88/x
  3. Step 3: Cross multiply
    72,965.96x = 100,693.92 × 41,134.88
  4. Step 4: Simplify right side
    72,965.96x = 4,142,032,315.93
  5. Step 5: Solve for x
    x = 4,142,032,315.93/72,965.96
  6. Step 6: Final answer
    x = 56,766.64

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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.