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Finding the Fourth Proportional to 80,393.09, 110,992.63 and 51,762.39

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Solution

The fourth proportional to 80,393.09, 110,992.63 and 51,762.39 is: 71,464.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,393.09 : 110,992.63 = 51,762.39 : x
  2. Step 2: Convert to fraction form
    80,393.09/110,992.63 = 51,762.39/x
  3. Step 3: Cross multiply
    80,393.09x = 110,992.63 × 51,762.39
  4. Step 4: Simplify right side
    80,393.09x = 5,745,243,671.78
  5. Step 5: Solve for x
    x = 5,745,243,671.78/80,393.09
  6. Step 6: Final answer
    x = 71,464.39

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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.