Home / 81,577.55-122,351.73-51,907.25

Finding the Fourth Proportional to 81,577.55, 122,351.73 and 51,907.25

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Solution

The fourth proportional to 81,577.55, 122,351.73 and 51,907.25 is: 77,851.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,577.55 : 122,351.73 = 51,907.25 : x
  2. Step 2: Convert to fraction form
    81,577.55/122,351.73 = 51,907.25/x
  3. Step 3: Cross multiply
    81,577.55x = 122,351.73 × 51,907.25
  4. Step 4: Simplify right side
    81,577.55x = 6,350,941,837.04
  5. Step 5: Solve for x
    x = 6,350,941,837.04/81,577.55
  6. Step 6: Final answer
    x = 77,851.59

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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.