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Finding the Fourth Proportional to 50,772, 70,065.96 and 28,111.44

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Solution

The fourth proportional to 50,772, 70,065.96 and 28,111.44 is: 38,794.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,772 : 70,065.96 = 28,111.44 : x
  2. Step 2: Convert to fraction form
    50,772/70,065.96 = 28,111.44/x
  3. Step 3: Cross multiply
    50,772x = 70,065.96 × 28,111.44
  4. Step 4: Simplify right side
    50,772x = 1,969,655,030.58
  5. Step 5: Solve for x
    x = 1,969,655,030.58/50,772
  6. Step 6: Final answer
    x = 38,794.12

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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.