Home / 45,828.48-68,751.36-18,128.64

Finding the Fourth Proportional to 45,828.48, 68,751.36 and 18,128.64

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Solution

The fourth proportional to 45,828.48, 68,751.36 and 18,128.64 is: 27,196.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,828.48 : 68,751.36 = 18,128.64 : x
  2. Step 2: Convert to fraction form
    45,828.48/68,751.36 = 18,128.64/x
  3. Step 3: Cross multiply
    45,828.48x = 68,751.36 × 18,128.64
  4. Step 4: Simplify right side
    45,828.48x = 1,246,368,654.95
  5. Step 5: Solve for x
    x = 1,246,368,654.95/45,828.48
  6. Step 6: Final answer
    x = 27,196.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.