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Finding the Fourth Proportional to 49,809.79, 68,737.53 and 28,299.57

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Solution

The fourth proportional to 49,809.79, 68,737.53 and 28,299.57 is: 39,053.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,809.79 : 68,737.53 = 28,299.57 : x
  2. Step 2: Convert to fraction form
    49,809.79/68,737.53 = 28,299.57/x
  3. Step 3: Cross multiply
    49,809.79x = 68,737.53 × 28,299.57
  4. Step 4: Simplify right side
    49,809.79x = 1,945,242,541.86
  5. Step 5: Solve for x
    x = 1,945,242,541.86/49,809.79
  6. Step 6: Final answer
    x = 39,053.42

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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.