Home / 86,128.32-118,835.30-50,295.54

Finding the Fourth Proportional to 86,128.32, 118,835.30 and 50,295.54

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Solution

The fourth proportional to 86,128.32, 118,835.30 and 50,295.54 is: 69,395.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,128.32 : 118,835.30 = 50,295.54 : x
  2. Step 2: Convert to fraction form
    86,128.32/118,835.30 = 50,295.54/x
  3. Step 3: Cross multiply
    86,128.32x = 118,835.30 × 50,295.54
  4. Step 4: Simplify right side
    86,128.32x = 5,976,885,584.56
  5. Step 5: Solve for x
    x = 5,976,885,584.56/86,128.32
  6. Step 6: Final answer
    x = 69,395.13

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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.