Home / 81,399.09-122,051.52-25,224.24

Finding the Fourth Proportional to 81,399.09, 122,051.52 and 25,224.24

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Solution

The fourth proportional to 81,399.09, 122,051.52 and 25,224.24 is: 37,821.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,399.09 : 122,051.52 = 25,224.24 : x
  2. Step 2: Convert to fraction form
    81,399.09/122,051.52 = 25,224.24/x
  3. Step 3: Cross multiply
    81,399.09x = 122,051.52 × 25,224.24
  4. Step 4: Simplify right side
    81,399.09x = 3,078,656,832.84
  5. Step 5: Solve for x
    x = 3,078,656,832.84/81,399.09
  6. Step 6: Final answer
    x = 37,821.76

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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.