Home / 65,986.05-98,997.50-21,643.99

Finding the Fourth Proportional to 65,986.05, 98,997.50 and 21,643.99

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Solution

The fourth proportional to 65,986.05, 98,997.50 and 21,643.99 is: 32,472.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,986.05 : 98,997.50 = 21,643.99 : x
  2. Step 2: Convert to fraction form
    65,986.05/98,997.50 = 21,643.99/x
  3. Step 3: Cross multiply
    65,986.05x = 98,997.50 × 21,643.99
  4. Step 4: Simplify right side
    65,986.05x = 2,142,700,900.03
  5. Step 5: Solve for x
    x = 2,142,700,900.03/65,986.05
  6. Step 6: Final answer
    x = 32,472.03

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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.