Home / 74,788.46-112,181.72-18,629.02

Finding the Fourth Proportional to 74,788.46, 112,181.72 and 18,629.02

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Solution

The fourth proportional to 74,788.46, 112,181.72 and 18,629.02 is: 27,943.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,788.46 : 112,181.72 = 18,629.02 : x
  2. Step 2: Convert to fraction form
    74,788.46/112,181.72 = 18,629.02/x
  3. Step 3: Cross multiply
    74,788.46x = 112,181.72 × 18,629.02
  4. Step 4: Simplify right side
    74,788.46x = 2,089,835,505.51
  5. Step 5: Solve for x
    x = 2,089,835,505.51/74,788.46
  6. Step 6: Final answer
    x = 27,943.29

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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.