Home / 50,911.12-76,377.72-21,313.72

Finding the Fourth Proportional to 50,911.12, 76,377.72 and 21,313.72

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Solution

The fourth proportional to 50,911.12, 76,377.72 and 21,313.72 is: 31,975.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,911.12 : 76,377.72 = 21,313.72 : x
  2. Step 2: Convert to fraction form
    50,911.12/76,377.72 = 21,313.72/x
  3. Step 3: Cross multiply
    50,911.12x = 76,377.72 × 21,313.72
  4. Step 4: Simplify right side
    50,911.12x = 1,627,893,338.32
  5. Step 5: Solve for x
    x = 1,627,893,338.32/50,911.12
  6. Step 6: Final answer
    x = 31,975.20

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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.