Home / 45,838.06-68,757.14-12,558.40

Finding the Fourth Proportional to 45,838.06, 68,757.14 and 12,558.40

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Solution

The fourth proportional to 45,838.06, 68,757.14 and 12,558.40 is: 18,837.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,838.06 : 68,757.14 = 12,558.40 : x
  2. Step 2: Convert to fraction form
    45,838.06/68,757.14 = 12,558.40/x
  3. Step 3: Cross multiply
    45,838.06x = 68,757.14 × 12,558.40
  4. Step 4: Simplify right side
    45,838.06x = 863,479,666.98
  5. Step 5: Solve for x
    x = 863,479,666.98/45,838.06
  6. Step 6: Final answer
    x = 18,837.61

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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.