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Finding the Fourth Proportional to 72,773.49, 100,407.25 and 43,694.30

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Solution

The fourth proportional to 72,773.49, 100,407.25 and 43,694.30 is: 60,286.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,773.49 : 100,407.25 = 43,694.30 : x
  2. Step 2: Convert to fraction form
    72,773.49/100,407.25 = 43,694.30/x
  3. Step 3: Cross multiply
    72,773.49x = 100,407.25 × 43,694.30
  4. Step 4: Simplify right side
    72,773.49x = 4,387,224,563.53
  5. Step 5: Solve for x
    x = 4,387,224,563.53/72,773.49
  6. Step 6: Final answer
    x = 60,286.03

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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.