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Finding the Fourth Proportional to 50,486, 75,750.48 and 20,925.32

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Solution

The fourth proportional to 50,486, 75,750.48 and 20,925.32 is: 31,396.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,486 : 75,750.48 = 20,925.32 : x
  2. Step 2: Convert to fraction form
    50,486/75,750.48 = 20,925.32/x
  3. Step 3: Cross multiply
    50,486x = 75,750.48 × 20,925.32
  4. Step 4: Simplify right side
    50,486x = 1,585,103,034.15
  5. Step 5: Solve for x
    x = 1,585,103,034.15/50,486
  6. Step 6: Final answer
    x = 31,396.88

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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.