Home / 66,784.16-100,179.48-55,076

Finding the Fourth Proportional to 66,784.16, 100,179.48 and 55,076

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Solution

The fourth proportional to 66,784.16, 100,179.48 and 55,076 is: 82,616.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,784.16 : 100,179.48 = 55,076 : x
  2. Step 2: Convert to fraction form
    66,784.16/100,179.48 = 55,076/x
  3. Step 3: Cross multiply
    66,784.16x = 100,179.48 × 55,076
  4. Step 4: Simplify right side
    66,784.16x = 5,517,485,040.48
  5. Step 5: Solve for x
    x = 5,517,485,040.48/66,784.16
  6. Step 6: Final answer
    x = 82,616.67

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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.