Home / 64,309.16-96,478.32-19,937.36

Finding the Fourth Proportional to 64,309.16, 96,478.32 and 19,937.36

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Solution

The fourth proportional to 64,309.16, 96,478.32 and 19,937.36 is: 29,910.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,309.16 : 96,478.32 = 19,937.36 : x
  2. Step 2: Convert to fraction form
    64,309.16/96,478.32 = 19,937.36/x
  3. Step 3: Cross multiply
    64,309.16x = 96,478.32 × 19,937.36
  4. Step 4: Simplify right side
    64,309.16x = 1,923,522,998.04
  5. Step 5: Solve for x
    x = 1,923,522,998.04/64,309.16
  6. Step 6: Final answer
    x = 29,910.56

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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.