Home / 279,631.44-419,348.34-90,084.15

Finding the Fourth Proportional to 279,631.44, 419,348.34 and 90,084.15

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Solution

The fourth proportional to 279,631.44, 419,348.34 and 90,084.15 is: 135,094.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,631.44 : 419,348.34 = 90,084.15 : x
  2. Step 2: Convert to fraction form
    279,631.44/419,348.34 = 90,084.15/x
  3. Step 3: Cross multiply
    279,631.44x = 419,348.34 × 90,084.15
  4. Step 4: Simplify right side
    279,631.44x = 37,776,638,762.81
  5. Step 5: Solve for x
    x = 37,776,638,762.81/279,631.44
  6. Step 6: Final answer
    x = 135,094.39

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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.