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Finding the Fourth Proportional to 69,633.80, 104,468.70 and 30,181.80

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Solution

The fourth proportional to 69,633.80, 104,468.70 and 30,181.80 is: 45,280.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,633.80 : 104,468.70 = 30,181.80 : x
  2. Step 2: Convert to fraction form
    69,633.80/104,468.70 = 30,181.80/x
  3. Step 3: Cross multiply
    69,633.80x = 104,468.70 × 30,181.80
  4. Step 4: Simplify right side
    69,633.80x = 3,153,053,409.66
  5. Step 5: Solve for x
    x = 3,153,053,409.66/69,633.80
  6. Step 6: Final answer
    x = 45,280.50

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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.