Home / 85,940.19-118,619.25-58,727.28

Finding the Fourth Proportional to 85,940.19, 118,619.25 and 58,727.28

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Solution

The fourth proportional to 85,940.19, 118,619.25 and 58,727.28 is: 81,058.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,940.19 : 118,619.25 = 58,727.28 : x
  2. Step 2: Convert to fraction form
    85,940.19/118,619.25 = 58,727.28/x
  3. Step 3: Cross multiply
    85,940.19x = 118,619.25 × 58,727.28
  4. Step 4: Simplify right side
    85,940.19x = 6,966,185,908.14
  5. Step 5: Solve for x
    x = 6,966,185,908.14/85,940.19
  6. Step 6: Final answer
    x = 81,058.54

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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.