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Finding the Fourth Proportional to 79,403.58, 109,568.79 and 47,571.66

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Solution

The fourth proportional to 79,403.58, 109,568.79 and 47,571.66 is: 65,644.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,403.58 : 109,568.79 = 47,571.66 : x
  2. Step 2: Convert to fraction form
    79,403.58/109,568.79 = 47,571.66/x
  3. Step 3: Cross multiply
    79,403.58x = 109,568.79 × 47,571.66
  4. Step 4: Simplify right side
    79,403.58x = 5,212,369,224.49
  5. Step 5: Solve for x
    x = 5,212,369,224.49/79,403.58
  6. Step 6: Final answer
    x = 65,644.01

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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.