Home / 65,728.42-98,571.75-21,344.92

Finding the Fourth Proportional to 65,728.42, 98,571.75 and 21,344.92

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Solution

The fourth proportional to 65,728.42, 98,571.75 and 21,344.92 is: 32,010.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,728.42 : 98,571.75 = 21,344.92 : x
  2. Step 2: Convert to fraction form
    65,728.42/98,571.75 = 21,344.92/x
  3. Step 3: Cross multiply
    65,728.42x = 98,571.75 × 21,344.92
  4. Step 4: Simplify right side
    65,728.42x = 2,104,006,118.01
  5. Step 5: Solve for x
    x = 2,104,006,118.01/65,728.42
  6. Step 6: Final answer
    x = 32,010.60

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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.