Home / 80,665.21-111,313.41-44,854.45

Finding the Fourth Proportional to 80,665.21, 111,313.41 and 44,854.45

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Solution

The fourth proportional to 80,665.21, 111,313.41 and 44,854.45 is: 61,896.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,665.21 : 111,313.41 = 44,854.45 : x
  2. Step 2: Convert to fraction form
    80,665.21/111,313.41 = 44,854.45/x
  3. Step 3: Cross multiply
    80,665.21x = 111,313.41 × 44,854.45
  4. Step 4: Simplify right side
    80,665.21x = 4,992,901,280.62
  5. Step 5: Solve for x
    x = 4,992,901,280.62/80,665.21
  6. Step 6: Final answer
    x = 61,896.59

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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.