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Finding the Fourth Proportional to 69,614.40, 104,464.40 and 30,171.84

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Solution

The fourth proportional to 69,614.40, 104,464.40 and 30,171.84 is: 45,276.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,614.40 : 104,464.40 = 30,171.84 : x
  2. Step 2: Convert to fraction form
    69,614.40/104,464.40 = 30,171.84/x
  3. Step 3: Cross multiply
    69,614.40x = 104,464.40 × 30,171.84
  4. Step 4: Simplify right side
    69,614.40x = 3,151,883,162.50
  5. Step 5: Solve for x
    x = 3,151,883,162.50/69,614.40
  6. Step 6: Final answer
    x = 45,276.31

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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.