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Finding the Fourth Proportional to 50,678.92, 69,940.02 and 28,322.92

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Solution

The fourth proportional to 50,678.92, 69,940.02 and 28,322.92 is: 39,087.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,678.92 : 69,940.02 = 28,322.92 : x
  2. Step 2: Convert to fraction form
    50,678.92/69,940.02 = 28,322.92/x
  3. Step 3: Cross multiply
    50,678.92x = 69,940.02 × 28,322.92
  4. Step 4: Simplify right side
    50,678.92x = 1,980,905,591.26
  5. Step 5: Solve for x
    x = 1,980,905,591.26/50,678.92
  6. Step 6: Final answer
    x = 39,087.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.