Home / 86,120.94-118,856.73-47,884.29

Finding the Fourth Proportional to 86,120.94, 118,856.73 and 47,884.29

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Solution

The fourth proportional to 86,120.94, 118,856.73 and 47,884.29 is: 66,085.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,120.94 : 118,856.73 = 47,884.29 : x
  2. Step 2: Convert to fraction form
    86,120.94/118,856.73 = 47,884.29/x
  3. Step 3: Cross multiply
    86,120.94x = 118,856.73 × 47,884.29
  4. Step 4: Simplify right side
    86,120.94x = 5,691,370,127.77
  5. Step 5: Solve for x
    x = 5,691,370,127.77/86,120.94
  6. Step 6: Final answer
    x = 66,085.79

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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.