Home / 64,261.40-96,399.30-19,887.80

Finding the Fourth Proportional to 64,261.40, 96,399.30 and 19,887.80

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Solution

The fourth proportional to 64,261.40, 96,399.30 and 19,887.80 is: 29,833.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,261.40 : 96,399.30 = 19,887.80 : x
  2. Step 2: Convert to fraction form
    64,261.40/96,399.30 = 19,887.80/x
  3. Step 3: Cross multiply
    64,261.40x = 96,399.30 × 19,887.80
  4. Step 4: Simplify right side
    64,261.40x = 1,917,169,998.54
  5. Step 5: Solve for x
    x = 1,917,169,998.54/64,261.40
  6. Step 6: Final answer
    x = 29,833.93

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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.