Home / 77,778.06-107,332.56-43,786.59

Finding the Fourth Proportional to 77,778.06, 107,332.56 and 43,786.59

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Solution

The fourth proportional to 77,778.06, 107,332.56 and 43,786.59 is: 60,424.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,778.06 : 107,332.56 = 43,786.59 : x
  2. Step 2: Convert to fraction form
    77,778.06/107,332.56 = 43,786.59/x
  3. Step 3: Cross multiply
    77,778.06x = 107,332.56 × 43,786.59
  4. Step 4: Simplify right side
    77,778.06x = 4,699,726,798.37
  5. Step 5: Solve for x
    x = 4,699,726,798.37/77,778.06
  6. Step 6: Final answer
    x = 60,424.84

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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.