Home / 71,845.56-107,769.69-19,254.60

Finding the Fourth Proportional to 71,845.56, 107,769.69 and 19,254.60

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Solution

The fourth proportional to 71,845.56, 107,769.69 and 19,254.60 is: 28,882.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,845.56 : 107,769.69 = 19,254.60 : x
  2. Step 2: Convert to fraction form
    71,845.56/107,769.69 = 19,254.60/x
  3. Step 3: Cross multiply
    71,845.56x = 107,769.69 × 19,254.60
  4. Step 4: Simplify right side
    71,845.56x = 2,075,062,273.07
  5. Step 5: Solve for x
    x = 2,075,062,273.07/71,845.56
  6. Step 6: Final answer
    x = 28,882.26

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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.