Home / 66,168.48-99,231.66-21,785.34

Finding the Fourth Proportional to 66,168.48, 99,231.66 and 21,785.34

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Solution

The fourth proportional to 66,168.48, 99,231.66 and 21,785.34 is: 32,671.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,168.48 : 99,231.66 = 21,785.34 : x
  2. Step 2: Convert to fraction form
    66,168.48/99,231.66 = 21,785.34/x
  3. Step 3: Cross multiply
    66,168.48x = 99,231.66 × 21,785.34
  4. Step 4: Simplify right side
    66,168.48x = 2,161,795,451.86
  5. Step 5: Solve for x
    x = 2,161,795,451.86/66,168.48
  6. Step 6: Final answer
    x = 32,671.08

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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.