Home / 80,773.48-121,164.30-30,857.92

Finding the Fourth Proportional to 80,773.48, 121,164.30 and 30,857.92

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Solution

The fourth proportional to 80,773.48, 121,164.30 and 30,857.92 is: 46,288.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,773.48 : 121,164.30 = 30,857.92 : x
  2. Step 2: Convert to fraction form
    80,773.48/121,164.30 = 30,857.92/x
  3. Step 3: Cross multiply
    80,773.48x = 121,164.30 × 30,857.92
  4. Step 4: Simplify right side
    80,773.48x = 3,738,878,276.26
  5. Step 5: Solve for x
    x = 3,738,878,276.26/80,773.48
  6. Step 6: Final answer
    x = 46,288.44

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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.