Home / 48,382.66-72,578.58-18,802.78

Finding the Fourth Proportional to 48,382.66, 72,578.58 and 18,802.78

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Solution

The fourth proportional to 48,382.66, 72,578.58 and 18,802.78 is: 28,205.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,382.66 : 72,578.58 = 18,802.78 : x
  2. Step 2: Convert to fraction form
    48,382.66/72,578.58 = 18,802.78/x
  3. Step 3: Cross multiply
    48,382.66x = 72,578.58 × 18,802.78
  4. Step 4: Simplify right side
    48,382.66x = 1,364,679,072.45
  5. Step 5: Solve for x
    x = 1,364,679,072.45/48,382.66
  6. Step 6: Final answer
    x = 28,205.95

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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.