Home / 77,673.36-107,145.54-46,620.66

Finding the Fourth Proportional to 77,673.36, 107,145.54 and 46,620.66

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Solution

The fourth proportional to 77,673.36, 107,145.54 and 46,620.66 is: 64,310.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,673.36 : 107,145.54 = 46,620.66 : x
  2. Step 2: Convert to fraction form
    77,673.36/107,145.54 = 46,620.66/x
  3. Step 3: Cross multiply
    77,673.36x = 107,145.54 × 46,620.66
  4. Step 4: Simplify right side
    77,673.36x = 4,995,195,790.86
  5. Step 5: Solve for x
    x = 4,995,195,790.86/77,673.36
  6. Step 6: Final answer
    x = 64,310.28

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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.