Home / 64,280.36-96,418.92-19,905.32

Finding the Fourth Proportional to 64,280.36, 96,418.92 and 19,905.32

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Solution

The fourth proportional to 64,280.36, 96,418.92 and 19,905.32 is: 29,857.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,280.36 : 96,418.92 = 19,905.32 : x
  2. Step 2: Convert to fraction form
    64,280.36/96,418.92 = 19,905.32/x
  3. Step 3: Cross multiply
    64,280.36x = 96,418.92 × 19,905.32
  4. Step 4: Simplify right side
    64,280.36x = 1,919,249,456.65
  5. Step 5: Solve for x
    x = 1,919,249,456.65/64,280.36
  6. Step 6: Final answer
    x = 29,857.48

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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.