Home / 276,380.75-414,360.45-86,731.74

Finding the Fourth Proportional to 276,380.75, 414,360.45 and 86,731.74

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Solution

The fourth proportional to 276,380.75, 414,360.45 and 86,731.74 is: 130,031.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,380.75 : 414,360.45 = 86,731.74 : x
  2. Step 2: Convert to fraction form
    276,380.75/414,360.45 = 86,731.74/x
  3. Step 3: Cross multiply
    276,380.75x = 414,360.45 × 86,731.74
  4. Step 4: Simplify right side
    276,380.75x = 35,938,202,815.68
  5. Step 5: Solve for x
    x = 35,938,202,815.68/276,380.75
  6. Step 6: Final answer
    x = 130,031.50

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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.