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Finding the Fourth Proportional to 53,465.80, 80,112.30 and 50,355.40

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Solution

The fourth proportional to 53,465.80, 80,112.30 and 50,355.40 is: 75,451.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,465.80 : 80,112.30 = 50,355.40 : x
  2. Step 2: Convert to fraction form
    53,465.80/80,112.30 = 50,355.40/x
  3. Step 3: Cross multiply
    53,465.80x = 80,112.30 × 50,355.40
  4. Step 4: Simplify right side
    53,465.80x = 4,034,086,911.42
  5. Step 5: Solve for x
    x = 4,034,086,911.42/53,465.80
  6. Step 6: Final answer
    x = 75,451.73

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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.