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Finding the Fourth Proportional to 64,489.58, 96,734.97 and 19,511.29

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Solution

The fourth proportional to 64,489.58, 96,734.97 and 19,511.29 is: 29,267.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,489.58 : 96,734.97 = 19,511.29 : x
  2. Step 2: Convert to fraction form
    64,489.58/96,734.97 = 19,511.29/x
  3. Step 3: Cross multiply
    64,489.58x = 96,734.97 × 19,511.29
  4. Step 4: Simplify right side
    64,489.58x = 1,887,423,810.97
  5. Step 5: Solve for x
    x = 1,887,423,810.97/64,489.58
  6. Step 6: Final answer
    x = 29,267.12

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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.