Home / 51,778.22-71,478-39,036.56

Finding the Fourth Proportional to 51,778.22, 71,478 and 39,036.56

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Solution

The fourth proportional to 51,778.22, 71,478 and 39,036.56 is: 53,888.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,778.22 : 71,478 = 39,036.56 : x
  2. Step 2: Convert to fraction form
    51,778.22/71,478 = 39,036.56/x
  3. Step 3: Cross multiply
    51,778.22x = 71,478 × 39,036.56
  4. Step 4: Simplify right side
    51,778.22x = 2,790,255,235.68
  5. Step 5: Solve for x
    x = 2,790,255,235.68/51,778.22
  6. Step 6: Final answer
    x = 53,888.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.