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Finding the Fourth Proportional to 65,997.58, 98,987.57 and 18,616.48

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Solution

The fourth proportional to 65,997.58, 98,987.57 and 18,616.48 is: 27,922.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,997.58 : 98,987.57 = 18,616.48 : x
  2. Step 2: Convert to fraction form
    65,997.58/98,987.57 = 18,616.48/x
  3. Step 3: Cross multiply
    65,997.58x = 98,987.57 × 18,616.48
  4. Step 4: Simplify right side
    65,997.58x = 1,842,799,776.60
  5. Step 5: Solve for x
    x = 1,842,799,776.60/65,997.58
  6. Step 6: Final answer
    x = 27,922.23

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1.5x scale

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.