Home / 81,989.48-122,984.22-46,904.54

Finding the Fourth Proportional to 81,989.48, 122,984.22 and 46,904.54

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Solution

The fourth proportional to 81,989.48, 122,984.22 and 46,904.54 is: 70,356.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,989.48 : 122,984.22 = 46,904.54 : x
  2. Step 2: Convert to fraction form
    81,989.48/122,984.22 = 46,904.54/x
  3. Step 3: Cross multiply
    81,989.48x = 122,984.22 × 46,904.54
  4. Step 4: Simplify right side
    81,989.48x = 5,768,517,827.33
  5. Step 5: Solve for x
    x = 5,768,517,827.33/81,989.48
  6. Step 6: Final answer
    x = 70,356.80

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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.