Home / 74,662.08-103,029.48-42,828

Finding the Fourth Proportional to 74,662.08, 103,029.48 and 42,828

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Solution

The fourth proportional to 74,662.08, 103,029.48 and 42,828 is: 59,100.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,662.08 : 103,029.48 = 42,828 : x
  2. Step 2: Convert to fraction form
    74,662.08/103,029.48 = 42,828/x
  3. Step 3: Cross multiply
    74,662.08x = 103,029.48 × 42,828
  4. Step 4: Simplify right side
    74,662.08x = 4,412,546,569.44
  5. Step 5: Solve for x
    x = 4,412,546,569.44/74,662.08
  6. Step 6: Final answer
    x = 59,100.24

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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.