Home / 276,221.12-414,340.59-76,543.43

Finding the Fourth Proportional to 276,221.12, 414,340.59 and 76,543.43

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Solution

The fourth proportional to 276,221.12, 414,340.59 and 76,543.43 is: 114,817.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,221.12 : 414,340.59 = 76,543.43 : x
  2. Step 2: Convert to fraction form
    276,221.12/414,340.59 = 76,543.43/x
  3. Step 3: Cross multiply
    276,221.12x = 414,340.59 × 76,543.43
  4. Step 4: Simplify right side
    276,221.12x = 31,715,047,492.40
  5. Step 5: Solve for x
    x = 31,715,047,492.40/276,221.12
  6. Step 6: Final answer
    x = 114,817.61

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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.