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Finding the Fourth Proportional to 50,455.70, 75,683.55 and 13,015.70

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Solution

The fourth proportional to 50,455.70, 75,683.55 and 13,015.70 is: 19,523.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,455.70 : 75,683.55 = 13,015.70 : x
  2. Step 2: Convert to fraction form
    50,455.70/75,683.55 = 13,015.70/x
  3. Step 3: Cross multiply
    50,455.70x = 75,683.55 × 13,015.70
  4. Step 4: Simplify right side
    50,455.70x = 985,074,381.74
  5. Step 5: Solve for x
    x = 985,074,381.74/50,455.70
  6. Step 6: Final answer
    x = 19,523.55

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.