Home / 45,724.16-68,585.81-12,443.96

Finding the Fourth Proportional to 45,724.16, 68,585.81 and 12,443.96

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Solution

The fourth proportional to 45,724.16, 68,585.81 and 12,443.96 is: 18,665.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,724.16 : 68,585.81 = 12,443.96 : x
  2. Step 2: Convert to fraction form
    45,724.16/68,585.81 = 12,443.96/x
  3. Step 3: Cross multiply
    45,724.16x = 68,585.81 × 12,443.96
  4. Step 4: Simplify right side
    45,724.16x = 853,479,185.45
  5. Step 5: Solve for x
    x = 853,479,185.45/45,724.16
  6. Step 6: Final answer
    x = 18,665.82

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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.