Home / 54,739.35-81,903.99-38,980.80

Finding the Fourth Proportional to 54,739.35, 81,903.99 and 38,980.80

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Solution

The fourth proportional to 54,739.35, 81,903.99 and 38,980.80 is: 58,325.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,739.35 : 81,903.99 = 38,980.80 : x
  2. Step 2: Convert to fraction form
    54,739.35/81,903.99 = 38,980.80/x
  3. Step 3: Cross multiply
    54,739.35x = 81,903.99 × 38,980.80
  4. Step 4: Simplify right side
    54,739.35x = 3,192,683,053.39
  5. Step 5: Solve for x
    x = 3,192,683,053.39/54,739.35
  6. Step 6: Final answer
    x = 58,325.19

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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.