Home / 69,040.64-103,566.83-19,120.74

Finding the Fourth Proportional to 69,040.64, 103,566.83 and 19,120.74

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Solution

The fourth proportional to 69,040.64, 103,566.83 and 19,120.74 is: 28,682.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,040.64 : 103,566.83 = 19,120.74 : x
  2. Step 2: Convert to fraction form
    69,040.64/103,566.83 = 19,120.74/x
  3. Step 3: Cross multiply
    69,040.64x = 103,566.83 × 19,120.74
  4. Step 4: Simplify right side
    69,040.64x = 1,980,274,333.45
  5. Step 5: Solve for x
    x = 1,980,274,333.45/69,040.64
  6. Step 6: Final answer
    x = 28,682.74

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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.