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Finding the Fourth Proportional to 69,459.28, 104,188.20 and 16,868.80

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Solution

The fourth proportional to 69,459.28, 104,188.20 and 16,868.80 is: 25,303.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,459.28 : 104,188.20 = 16,868.80 : x
  2. Step 2: Convert to fraction form
    69,459.28/104,188.20 = 16,868.80/x
  3. Step 3: Cross multiply
    69,459.28x = 104,188.20 × 16,868.80
  4. Step 4: Simplify right side
    69,459.28x = 1,757,529,908.16
  5. Step 5: Solve for x
    x = 1,757,529,908.16/69,459.28
  6. Step 6: Final answer
    x = 25,303.03

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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.