Home / 81,406.08-122,109.39-41,974.74

Finding the Fourth Proportional to 81,406.08, 122,109.39 and 41,974.74

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Solution

The fourth proportional to 81,406.08, 122,109.39 and 41,974.74 is: 62,962.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,406.08 : 122,109.39 = 41,974.74 : x
  2. Step 2: Convert to fraction form
    81,406.08/122,109.39 = 41,974.74/x
  3. Step 3: Cross multiply
    81,406.08x = 122,109.39 × 41,974.74
  4. Step 4: Simplify right side
    81,406.08x = 5,125,509,896.81
  5. Step 5: Solve for x
    x = 5,125,509,896.81/81,406.08
  6. Step 6: Final answer
    x = 62,962.25

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1.5x scale

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.