Home / 54,742.36-81,908.48-38,983.80

Finding the Fourth Proportional to 54,742.36, 81,908.48 and 38,983.80

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Solution

The fourth proportional to 54,742.36, 81,908.48 and 38,983.80 is: 58,329.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,742.36 : 81,908.48 = 38,983.80 : x
  2. Step 2: Convert to fraction form
    54,742.36/81,908.48 = 38,983.80/x
  3. Step 3: Cross multiply
    54,742.36x = 81,908.48 × 38,983.80
  4. Step 4: Simplify right side
    54,742.36x = 3,193,103,802.62
  5. Step 5: Solve for x
    x = 3,193,103,802.62/54,742.36
  6. Step 6: Final answer
    x = 58,329.67

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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.