Home / 64,531.66-96,811.16-20,161.76

Finding the Fourth Proportional to 64,531.66, 96,811.16 and 20,161.76

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Solution

The fourth proportional to 64,531.66, 96,811.16 and 20,161.76 is: 30,246.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,531.66 : 96,811.16 = 20,161.76 : x
  2. Step 2: Convert to fraction form
    64,531.66/96,811.16 = 20,161.76/x
  3. Step 3: Cross multiply
    64,531.66x = 96,811.16 × 20,161.76
  4. Step 4: Simplify right side
    64,531.66x = 1,951,883,474.70
  5. Step 5: Solve for x
    x = 1,951,883,474.70/64,531.66
  6. Step 6: Final answer
    x = 30,246.91

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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.