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Finding the Fourth Proportional to 69,459.89, 104,189.85 and 16,869.02

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Solution

The fourth proportional to 69,459.89, 104,189.85 and 16,869.02 is: 25,303.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,459.89 : 104,189.85 = 16,869.02 : x
  2. Step 2: Convert to fraction form
    69,459.89/104,189.85 = 16,869.02/x
  3. Step 3: Cross multiply
    69,459.89x = 104,189.85 × 16,869.02
  4. Step 4: Simplify right side
    69,459.89x = 1,757,580,142.50
  5. Step 5: Solve for x
    x = 1,757,580,142.50/69,459.89
  6. Step 6: Final answer
    x = 25,303.53

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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.