Home / 45,293.97-67,905.22-28,618.81

Finding the Fourth Proportional to 45,293.97, 67,905.22 and 28,618.81

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Solution

The fourth proportional to 45,293.97, 67,905.22 and 28,618.81 is: 42,905.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,293.97 : 67,905.22 = 28,618.81 : x
  2. Step 2: Convert to fraction form
    45,293.97/67,905.22 = 28,618.81/x
  3. Step 3: Cross multiply
    45,293.97x = 67,905.22 × 28,618.81
  4. Step 4: Simplify right side
    45,293.97x = 1,943,366,589.19
  5. Step 5: Solve for x
    x = 1,943,366,589.19/45,293.97
  6. Step 6: Final answer
    x = 42,905.64

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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.