Home / 80,752.52-121,119.26-21,592.76

Finding the Fourth Proportional to 80,752.52, 121,119.26 and 21,592.76

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Solution

The fourth proportional to 80,752.52, 121,119.26 and 21,592.76 is: 32,386.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,752.52 : 121,119.26 = 21,592.76 : x
  2. Step 2: Convert to fraction form
    80,752.52/121,119.26 = 21,592.76/x
  3. Step 3: Cross multiply
    80,752.52x = 121,119.26 × 21,592.76
  4. Step 4: Simplify right side
    80,752.52x = 2,615,299,112.56
  5. Step 5: Solve for x
    x = 2,615,299,112.56/80,752.52
  6. Step 6: Final answer
    x = 32,386.59

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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.