Home / 81,822.86-122,769.81-44,409.36

Finding the Fourth Proportional to 81,822.86, 122,769.81 and 44,409.36

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Solution

The fourth proportional to 81,822.86, 122,769.81 and 44,409.36 is: 66,633.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,822.86 : 122,769.81 = 44,409.36 : x
  2. Step 2: Convert to fraction form
    81,822.86/122,769.81 = 44,409.36/x
  3. Step 3: Cross multiply
    81,822.86x = 122,769.81 × 44,409.36
  4. Step 4: Simplify right side
    81,822.86x = 5,452,128,689.42
  5. Step 5: Solve for x
    x = 5,452,128,689.42/81,822.86
  6. Step 6: Final answer
    x = 66,633.32

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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.