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Finding the Fourth Proportional to 66,584.48, 99,866.48 and 19,829.92

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Solution

The fourth proportional to 66,584.48, 99,866.48 and 19,829.92 is: 29,741.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,584.48 : 99,866.48 = 19,829.92 : x
  2. Step 2: Convert to fraction form
    66,584.48/99,866.48 = 19,829.92/x
  3. Step 3: Cross multiply
    66,584.48x = 99,866.48 × 19,829.92
  4. Step 4: Simplify right side
    66,584.48x = 1,980,344,309.08
  5. Step 5: Solve for x
    x = 1,980,344,309.08/66,584.48
  6. Step 6: Final answer
    x = 29,741.83

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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.