Home / 77,945.66-107,493.27-51,078.41

Finding the Fourth Proportional to 77,945.66, 107,493.27 and 51,078.41

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Solution

The fourth proportional to 77,945.66, 107,493.27 and 51,078.41 is: 70,441.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,945.66 : 107,493.27 = 51,078.41 : x
  2. Step 2: Convert to fraction form
    77,945.66/107,493.27 = 51,078.41/x
  3. Step 3: Cross multiply
    77,945.66x = 107,493.27 × 51,078.41
  4. Step 4: Simplify right side
    77,945.66x = 5,490,585,317.30
  5. Step 5: Solve for x
    x = 5,490,585,317.30/77,945.66
  6. Step 6: Final answer
    x = 70,441.19

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1.5x scale

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.