Home / 50,772.64-70,072.32-31,907.20

Finding the Fourth Proportional to 50,772.64, 70,072.32 and 31,907.20

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Solution

The fourth proportional to 50,772.64, 70,072.32 and 31,907.20 is: 44,035.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,772.64 : 70,072.32 = 31,907.20 : x
  2. Step 2: Convert to fraction form
    50,772.64/70,072.32 = 31,907.20/x
  3. Step 3: Cross multiply
    50,772.64x = 70,072.32 × 31,907.20
  4. Step 4: Simplify right side
    50,772.64x = 2,235,811,528.70
  5. Step 5: Solve for x
    x = 2,235,811,528.70/50,772.64
  6. Step 6: Final answer
    x = 44,035.75

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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.