Home / 77,205.72-115,825.60-43,941.46

Finding the Fourth Proportional to 77,205.72, 115,825.60 and 43,941.46

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Solution

The fourth proportional to 77,205.72, 115,825.60 and 43,941.46 is: 65,921.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,205.72 : 115,825.60 = 43,941.46 : x
  2. Step 2: Convert to fraction form
    77,205.72/115,825.60 = 43,941.46/x
  3. Step 3: Cross multiply
    77,205.72x = 115,825.60 × 43,941.46
  4. Step 4: Simplify right side
    77,205.72x = 5,089,545,969.38
  5. Step 5: Solve for x
    x = 5,089,545,969.38/77,205.72
  6. Step 6: Final answer
    x = 65,921.88

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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.