Home / 51,357.29-77,042.09-21,771.28

Finding the Fourth Proportional to 51,357.29, 77,042.09 and 21,771.28

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Solution

The fourth proportional to 51,357.29, 77,042.09 and 21,771.28 is: 32,659.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,357.29 : 77,042.09 = 21,771.28 : x
  2. Step 2: Convert to fraction form
    51,357.29/77,042.09 = 21,771.28/x
  3. Step 3: Cross multiply
    51,357.29x = 77,042.09 × 21,771.28
  4. Step 4: Simplify right side
    51,357.29x = 1,677,304,941.44
  5. Step 5: Solve for x
    x = 1,677,304,941.44/51,357.29
  6. Step 6: Final answer
    x = 32,659.53

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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.