Home / 64,018.78-96,043.75-21,324.10

Finding the Fourth Proportional to 64,018.78, 96,043.75 and 21,324.10

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Solution

The fourth proportional to 64,018.78, 96,043.75 and 21,324.10 is: 31,991.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,018.78 : 96,043.75 = 21,324.10 : x
  2. Step 2: Convert to fraction form
    64,018.78/96,043.75 = 21,324.10/x
  3. Step 3: Cross multiply
    64,018.78x = 96,043.75 × 21,324.10
  4. Step 4: Simplify right side
    64,018.78x = 2,048,046,422.75
  5. Step 5: Solve for x
    x = 2,048,046,422.75/64,018.78
  6. Step 6: Final answer
    x = 31,991.34

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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.