Home / 45,185.32-67,772.19-11,907.95

Finding the Fourth Proportional to 45,185.32, 67,772.19 and 11,907.95

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Solution

The fourth proportional to 45,185.32, 67,772.19 and 11,907.95 is: 17,860.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,185.32 : 67,772.19 = 11,907.95 : x
  2. Step 2: Convert to fraction form
    45,185.32/67,772.19 = 11,907.95/x
  3. Step 3: Cross multiply
    45,185.32x = 67,772.19 × 11,907.95
  4. Step 4: Simplify right side
    45,185.32x = 807,027,849.91
  5. Step 5: Solve for x
    x = 807,027,849.91/45,185.32
  6. Step 6: Final answer
    x = 17,860.40

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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.