Home / 124,022.78-186,031.42-39,779.54

Finding the Fourth Proportional to 124,022.78, 186,031.42 and 39,779.54

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Solution

The fourth proportional to 124,022.78, 186,031.42 and 39,779.54 is: 59,668.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,022.78 : 186,031.42 = 39,779.54 : x
  2. Step 2: Convert to fraction form
    124,022.78/186,031.42 = 39,779.54/x
  3. Step 3: Cross multiply
    124,022.78x = 186,031.42 × 39,779.54
  4. Step 4: Simplify right side
    124,022.78x = 7,400,244,313.15
  5. Step 5: Solve for x
    x = 7,400,244,313.15/124,022.78
  6. Step 6: Final answer
    x = 59,668.43

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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.