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Finding the Fourth Proportional to 79,091.88, 109,137.24 and 47,254.56

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Solution

The fourth proportional to 79,091.88, 109,137.24 and 47,254.56 is: 65,205.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,091.88 : 109,137.24 = 47,254.56 : x
  2. Step 2: Convert to fraction form
    79,091.88/109,137.24 = 47,254.56/x
  3. Step 3: Cross multiply
    79,091.88x = 109,137.24 × 47,254.56
  4. Step 4: Simplify right side
    79,091.88x = 5,157,232,255.81
  5. Step 5: Solve for x
    x = 5,157,232,255.81/79,091.88
  6. Step 6: Final answer
    x = 65,205.58

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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.