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Finding the Fourth Proportional to 64,653.69, 96,980.53 and 17,906.57

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Solution

The fourth proportional to 64,653.69, 96,980.53 and 17,906.57 is: 26,859.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,653.69 : 96,980.53 = 17,906.57 : x
  2. Step 2: Convert to fraction form
    64,653.69/96,980.53 = 17,906.57/x
  3. Step 3: Cross multiply
    64,653.69x = 96,980.53 × 17,906.57
  4. Step 4: Simplify right side
    64,653.69x = 1,736,588,164.18
  5. Step 5: Solve for x
    x = 1,736,588,164.18/64,653.69
  6. Step 6: Final answer
    x = 26,859.85

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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.