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Finding the Fourth Proportional to 84,625.44, 126,941.64 and 69,806.76

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Solution

The fourth proportional to 84,625.44, 126,941.64 and 69,806.76 is: 104,713.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,625.44 : 126,941.64 = 69,806.76 : x
  2. Step 2: Convert to fraction form
    84,625.44/126,941.64 = 69,806.76/x
  3. Step 3: Cross multiply
    84,625.44x = 126,941.64 × 69,806.76
  4. Step 4: Simplify right side
    84,625.44x = 8,861,384,597.49
  5. Step 5: Solve for x
    x = 8,861,384,597.49/84,625.44
  6. Step 6: Final answer
    x = 104,713.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.