Home / 81,646.36-122,474.09-25,494.21

Finding the Fourth Proportional to 81,646.36, 122,474.09 and 25,494.21

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Solution

The fourth proportional to 81,646.36, 122,474.09 and 25,494.21 is: 38,242.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,646.36 : 122,474.09 = 25,494.21 : x
  2. Step 2: Convert to fraction form
    81,646.36/122,474.09 = 25,494.21/x
  3. Step 3: Cross multiply
    81,646.36x = 122,474.09 × 25,494.21
  4. Step 4: Simplify right side
    81,646.36x = 3,122,380,233.75
  5. Step 5: Solve for x
    x = 3,122,380,233.75/81,646.36
  6. Step 6: Final answer
    x = 38,242.74

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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.