Home / 54,739.40-82,130.70-21,453.80

Finding the Fourth Proportional to 54,739.40, 82,130.70 and 21,453.80

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Solution

The fourth proportional to 54,739.40, 82,130.70 and 21,453.80 is: 32,189.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,739.40 : 82,130.70 = 21,453.80 : x
  2. Step 2: Convert to fraction form
    54,739.40/82,130.70 = 21,453.80/x
  3. Step 3: Cross multiply
    54,739.40x = 82,130.70 × 21,453.80
  4. Step 4: Simplify right side
    54,739.40x = 1,762,015,611.66
  5. Step 5: Solve for x
    x = 1,762,015,611.66/54,739.40
  6. Step 6: Final answer
    x = 32,189.17

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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.