Home / 81,885.37-122,631.22-46,718.41

Finding the Fourth Proportional to 81,885.37, 122,631.22 and 46,718.41

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Solution

The fourth proportional to 81,885.37, 122,631.22 and 46,718.41 is: 69,965.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,885.37 : 122,631.22 = 46,718.41 : x
  2. Step 2: Convert to fraction form
    81,885.37/122,631.22 = 46,718.41/x
  3. Step 3: Cross multiply
    81,885.37x = 122,631.22 × 46,718.41
  4. Step 4: Simplify right side
    81,885.37x = 5,729,135,614.76
  5. Step 5: Solve for x
    x = 5,729,135,614.76/81,885.37
  6. Step 6: Final answer
    x = 69,965.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.