Home / 81,173.04-121,760.48-25,012.70

Finding the Fourth Proportional to 81,173.04, 121,760.48 and 25,012.70

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Solution

The fourth proportional to 81,173.04, 121,760.48 and 25,012.70 is: 37,519.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,173.04 : 121,760.48 = 25,012.70 : x
  2. Step 2: Convert to fraction form
    81,173.04/121,760.48 = 25,012.70/x
  3. Step 3: Cross multiply
    81,173.04x = 121,760.48 × 25,012.70
  4. Step 4: Simplify right side
    81,173.04x = 3,045,558,268.43
  5. Step 5: Solve for x
    x = 3,045,558,268.43/81,173.04
  6. Step 6: Final answer
    x = 37,519.33

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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.