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Finding the Fourth Proportional to 69,883.40, 104,825.10 and 65,728.10

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Solution

The fourth proportional to 69,883.40, 104,825.10 and 65,728.10 is: 98,592.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,883.40 : 104,825.10 = 65,728.10 : x
  2. Step 2: Convert to fraction form
    69,883.40/104,825.10 = 65,728.10/x
  3. Step 3: Cross multiply
    69,883.40x = 104,825.10 × 65,728.10
  4. Step 4: Simplify right side
    69,883.40x = 6,889,954,655.31
  5. Step 5: Solve for x
    x = 6,889,954,655.31/69,883.40
  6. Step 6: Final answer
    x = 98,592.15

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Similar ratio
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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.