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Finding the Fourth Proportional to 50,376.79, 69,529.91 and 28,880.97

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Solution

The fourth proportional to 50,376.79, 69,529.91 and 28,880.97 is: 39,861.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,376.79 : 69,529.91 = 28,880.97 : x
  2. Step 2: Convert to fraction form
    50,376.79/69,529.91 = 28,880.97/x
  3. Step 3: Cross multiply
    50,376.79x = 69,529.91 × 28,880.97
  4. Step 4: Simplify right side
    50,376.79x = 2,008,090,839.67
  5. Step 5: Solve for x
    x = 2,008,090,839.67/50,376.79
  6. Step 6: Final answer
    x = 39,861.43

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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.