Home / 89,940.48-124,128.36-74,806.44

Finding the Fourth Proportional to 89,940.48, 124,128.36 and 74,806.44

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Solution

The fourth proportional to 89,940.48, 124,128.36 and 74,806.44 is: 103,241.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,940.48 : 124,128.36 = 74,806.44 : x
  2. Step 2: Convert to fraction form
    89,940.48/124,128.36 = 74,806.44/x
  3. Step 3: Cross multiply
    89,940.48x = 124,128.36 × 74,806.44
  4. Step 4: Simplify right side
    89,940.48x = 9,285,600,714.64
  5. Step 5: Solve for x
    x = 9,285,600,714.64/89,940.48
  6. Step 6: Final answer
    x = 103,241.62

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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.