Home / 54,971.15-82,401.32-21,678.35

Finding the Fourth Proportional to 54,971.15, 82,401.32 and 21,678.35

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Solution

The fourth proportional to 54,971.15, 82,401.32 and 21,678.35 is: 32,495.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,971.15 : 82,401.32 = 21,678.35 : x
  2. Step 2: Convert to fraction form
    54,971.15/82,401.32 = 21,678.35/x
  3. Step 3: Cross multiply
    54,971.15x = 82,401.32 × 21,678.35
  4. Step 4: Simplify right side
    54,971.15x = 1,786,324,297.61
  5. Step 5: Solve for x
    x = 1,786,324,297.61/54,971.15
  6. Step 6: Final answer
    x = 32,495.67

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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.