Home / 86,379.40-119,198.75-47,615.97

Finding the Fourth Proportional to 86,379.40, 119,198.75 and 47,615.97

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Solution

The fourth proportional to 86,379.40, 119,198.75 and 47,615.97 is: 65,707.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,379.40 : 119,198.75 = 47,615.97 : x
  2. Step 2: Convert to fraction form
    86,379.40/119,198.75 = 47,615.97/x
  3. Step 3: Cross multiply
    86,379.40x = 119,198.75 × 47,615.97
  4. Step 4: Simplify right side
    86,379.40x = 5,675,764,104.04
  5. Step 5: Solve for x
    x = 5,675,764,104.04/86,379.40
  6. Step 6: Final answer
    x = 65,707.38

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1.5x scale

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.