Home / 64,288.72-96,442.24-19,918.96

Finding the Fourth Proportional to 64,288.72, 96,442.24 and 19,918.96

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Solution

The fourth proportional to 64,288.72, 96,442.24 and 19,918.96 is: 29,881.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,288.72 : 96,442.24 = 19,918.96 : x
  2. Step 2: Convert to fraction form
    64,288.72/96,442.24 = 19,918.96/x
  3. Step 3: Cross multiply
    64,288.72x = 96,442.24 × 19,918.96
  4. Step 4: Simplify right side
    64,288.72x = 1,921,029,120.87
  5. Step 5: Solve for x
    x = 1,921,029,120.87/64,288.72
  6. Step 6: Final answer
    x = 29,881.28

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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.