Home / 75,340.89-113,009.51-19,181.12

Finding the Fourth Proportional to 75,340.89, 113,009.51 and 19,181.12

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Solution

The fourth proportional to 75,340.89, 113,009.51 and 19,181.12 is: 28,771.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,340.89 : 113,009.51 = 19,181.12 : x
  2. Step 2: Convert to fraction form
    75,340.89/113,009.51 = 19,181.12/x
  3. Step 3: Cross multiply
    75,340.89x = 113,009.51 × 19,181.12
  4. Step 4: Simplify right side
    75,340.89x = 2,167,649,091.03
  5. Step 5: Solve for x
    x = 2,167,649,091.03/75,340.89
  6. Step 6: Final answer
    x = 28,771.22

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1.5x scale

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.