Home / 76,891.14-106,120.37-45,072.74

Finding the Fourth Proportional to 76,891.14, 106,120.37 and 45,072.74

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Solution

The fourth proportional to 76,891.14, 106,120.37 and 45,072.74 is: 62,206.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,891.14 : 106,120.37 = 45,072.74 : x
  2. Step 2: Convert to fraction form
    76,891.14/106,120.37 = 45,072.74/x
  3. Step 3: Cross multiply
    76,891.14x = 106,120.37 × 45,072.74
  4. Step 4: Simplify right side
    76,891.14x = 4,783,135,845.71
  5. Step 5: Solve for x
    x = 4,783,135,845.71/76,891.14
  6. Step 6: Final answer
    x = 62,206.59

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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.