Home / 54,544.40-81,816.60-19,485.20

Finding the Fourth Proportional to 54,544.40, 81,816.60 and 19,485.20

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Solution

The fourth proportional to 54,544.40, 81,816.60 and 19,485.20 is: 29,227.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,544.40 : 81,816.60 = 19,485.20 : x
  2. Step 2: Convert to fraction form
    54,544.40/81,816.60 = 19,485.20/x
  3. Step 3: Cross multiply
    54,544.40x = 81,816.60 × 19,485.20
  4. Step 4: Simplify right side
    54,544.40x = 1,594,212,814.32
  5. Step 5: Solve for x
    x = 1,594,212,814.32/54,544.40
  6. Step 6: Final answer
    x = 29,227.80

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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.