Home / 66,803.16-100,253.34-53,812.38

Finding the Fourth Proportional to 66,803.16, 100,253.34 and 53,812.38

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Solution

The fourth proportional to 66,803.16, 100,253.34 and 53,812.38 is: 80,757.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,803.16 : 100,253.34 = 53,812.38 : x
  2. Step 2: Convert to fraction form
    66,803.16/100,253.34 = 53,812.38/x
  3. Step 3: Cross multiply
    66,803.16x = 100,253.34 × 53,812.38
  4. Step 4: Simplify right side
    66,803.16x = 5,394,870,828.35
  5. Step 5: Solve for x
    x = 5,394,870,828.35/66,803.16
  6. Step 6: Final answer
    x = 80,757.72

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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.