Home / 51,268.44-70,747.74-28,911

Finding the Fourth Proportional to 51,268.44, 70,747.74 and 28,911

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Solution

The fourth proportional to 51,268.44, 70,747.74 and 28,911 is: 39,895.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,268.44 : 70,747.74 = 28,911 : x
  2. Step 2: Convert to fraction form
    51,268.44/70,747.74 = 28,911/x
  3. Step 3: Cross multiply
    51,268.44x = 70,747.74 × 28,911
  4. Step 4: Simplify right side
    51,268.44x = 2,045,387,911.14
  5. Step 5: Solve for x
    x = 2,045,387,911.14/51,268.44
  6. Step 6: Final answer
    x = 39,895.65

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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.