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Finding the Fourth Proportional to 80,190.68, 110,664.96 and 51,945.52

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Solution

The fourth proportional to 80,190.68, 110,664.96 and 51,945.52 is: 71,686.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,190.68 : 110,664.96 = 51,945.52 : x
  2. Step 2: Convert to fraction form
    80,190.68/110,664.96 = 51,945.52/x
  3. Step 3: Cross multiply
    80,190.68x = 110,664.96 × 51,945.52
  4. Step 4: Simplify right side
    80,190.68x = 5,748,548,892.98
  5. Step 5: Solve for x
    x = 5,748,548,892.98/80,190.68
  6. Step 6: Final answer
    x = 71,686.00

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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.