Home / 77,984.56-107,629.32-47,771.56

Finding the Fourth Proportional to 77,984.56, 107,629.32 and 47,771.56

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Solution

The fourth proportional to 77,984.56, 107,629.32 and 47,771.56 is: 65,931.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,984.56 : 107,629.32 = 47,771.56 : x
  2. Step 2: Convert to fraction form
    77,984.56/107,629.32 = 47,771.56/x
  3. Step 3: Cross multiply
    77,984.56x = 107,629.32 × 47,771.56
  4. Step 4: Simplify right side
    77,984.56x = 5,141,620,518.14
  5. Step 5: Solve for x
    x = 5,141,620,518.14/77,984.56
  6. Step 6: Final answer
    x = 65,931.26

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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.