Home / 80,750.52-121,116.26-21,590.75

Finding the Fourth Proportional to 80,750.52, 121,116.26 and 21,590.75

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Solution

The fourth proportional to 80,750.52, 121,116.26 and 21,590.75 is: 32,383.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,750.52 : 121,116.26 = 21,590.75 : x
  2. Step 2: Convert to fraction form
    80,750.52/121,116.26 = 21,590.75/x
  3. Step 3: Cross multiply
    80,750.52x = 121,116.26 × 21,590.75
  4. Step 4: Simplify right side
    80,750.52x = 2,614,991,247.36
  5. Step 5: Solve for x
    x = 2,614,991,247.36/80,750.52
  6. Step 6: Final answer
    x = 32,383.58

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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.