Home / 98,228.73-135,448.38-66,342.27

Finding the Fourth Proportional to 98,228.73, 135,448.38 and 66,342.27

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Solution

The fourth proportional to 98,228.73, 135,448.38 and 66,342.27 is: 91,479.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,228.73 : 135,448.38 = 66,342.27 : x
  2. Step 2: Convert to fraction form
    98,228.73/135,448.38 = 66,342.27/x
  3. Step 3: Cross multiply
    98,228.73x = 135,448.38 × 66,342.27
  4. Step 4: Simplify right side
    98,228.73x = 8,985,952,997.02
  5. Step 5: Solve for x
    x = 8,985,952,997.02/98,228.73
  6. Step 6: Final answer
    x = 91,479.89

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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.