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Finding the Fourth Proportional to 50,078.60, 69,103.80 and 29,931.48

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Solution

The fourth proportional to 50,078.60, 69,103.80 and 29,931.48 is: 41,302.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,078.60 : 69,103.80 = 29,931.48 : x
  2. Step 2: Convert to fraction form
    50,078.60/69,103.80 = 29,931.48/x
  3. Step 3: Cross multiply
    50,078.60x = 69,103.80 × 29,931.48
  4. Step 4: Simplify right side
    50,078.60x = 2,068,379,007.62
  5. Step 5: Solve for x
    x = 2,068,379,007.62/50,078.60
  6. Step 6: Final answer
    x = 41,302.65

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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.