Home / 77,685.45-107,201.79-45,842.73

Finding the Fourth Proportional to 77,685.45, 107,201.79 and 45,842.73

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Solution

The fourth proportional to 77,685.45, 107,201.79 and 45,842.73 is: 63,260.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,685.45 : 107,201.79 = 45,842.73 : x
  2. Step 2: Convert to fraction form
    77,685.45/107,201.79 = 45,842.73/x
  3. Step 3: Cross multiply
    77,685.45x = 107,201.79 × 45,842.73
  4. Step 4: Simplify right side
    77,685.45x = 4,914,422,714.49
  5. Step 5: Solve for x
    x = 4,914,422,714.49/77,685.45
  6. Step 6: Final answer
    x = 63,260.53

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Half scale
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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.