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Finding the Fourth Proportional to 65,404.62, 98,104.83 and 18,657.48

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Solution

The fourth proportional to 65,404.62, 98,104.83 and 18,657.48 is: 27,985.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,404.62 : 98,104.83 = 18,657.48 : x
  2. Step 2: Convert to fraction form
    65,404.62/98,104.83 = 18,657.48/x
  3. Step 3: Cross multiply
    65,404.62x = 98,104.83 × 18,657.48
  4. Step 4: Simplify right side
    65,404.62x = 1,830,388,903.63
  5. Step 5: Solve for x
    x = 1,830,388,903.63/65,404.62
  6. Step 6: Final answer
    x = 27,985.62

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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.