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Finding the Fourth Proportional to 73,811.25, 101,864.99 and 41,990.40

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Solution

The fourth proportional to 73,811.25, 101,864.99 and 41,990.40 is: 57,949.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,811.25 : 101,864.99 = 41,990.40 : x
  2. Step 2: Convert to fraction form
    73,811.25/101,864.99 = 41,990.40/x
  3. Step 3: Cross multiply
    73,811.25x = 101,864.99 × 41,990.40
  4. Step 4: Simplify right side
    73,811.25x = 4,277,351,781.07
  5. Step 5: Solve for x
    x = 4,277,351,781.07/73,811.25
  6. Step 6: Final answer
    x = 57,949.86

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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.