Home / 39,078.49-58,556.26-30,215.47

Finding the Fourth Proportional to 39,078.49, 58,556.26 and 30,215.47

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Solution

The fourth proportional to 39,078.49, 58,556.26 and 30,215.47 is: 45,275.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,078.49 : 58,556.26 = 30,215.47 : x
  2. Step 2: Convert to fraction form
    39,078.49/58,556.26 = 30,215.47/x
  3. Step 3: Cross multiply
    39,078.49x = 58,556.26 × 30,215.47
  4. Step 4: Simplify right side
    39,078.49x = 1,769,304,917.34
  5. Step 5: Solve for x
    x = 1,769,304,917.34/39,078.49
  6. Step 6: Final answer
    x = 45,275.67

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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.