Home / 45,284.77-67,917.43-28,409.65

Finding the Fourth Proportional to 45,284.77, 67,917.43 and 28,409.65

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Solution

The fourth proportional to 45,284.77, 67,917.43 and 28,409.65 is: 42,608.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,284.77 : 67,917.43 = 28,409.65 : x
  2. Step 2: Convert to fraction form
    45,284.77/67,917.43 = 28,409.65/x
  3. Step 3: Cross multiply
    45,284.77x = 67,917.43 × 28,409.65
  4. Step 4: Simplify right side
    45,284.77x = 1,929,510,415.20
  5. Step 5: Solve for x
    x = 1,929,510,415.20/45,284.77
  6. Step 6: Final answer
    x = 42,608.37

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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.