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Finding the Fourth Proportional to 64,040.43, 96,060.65 and 21,921.06

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Solution

The fourth proportional to 64,040.43, 96,060.65 and 21,921.06 is: 32,881.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,040.43 : 96,060.65 = 21,921.06 : x
  2. Step 2: Convert to fraction form
    64,040.43/96,060.65 = 21,921.06/x
  3. Step 3: Cross multiply
    64,040.43x = 96,060.65 × 21,921.06
  4. Step 4: Simplify right side
    64,040.43x = 2,105,751,162.68
  5. Step 5: Solve for x
    x = 2,105,751,162.68/64,040.43
  6. Step 6: Final answer
    x = 32,881.59

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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.