Home / 45,915.86-68,874.57-12,635.73

Finding the Fourth Proportional to 45,915.86, 68,874.57 and 12,635.73

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Solution

The fourth proportional to 45,915.86, 68,874.57 and 12,635.73 is: 18,953.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,915.86 : 68,874.57 = 12,635.73 : x
  2. Step 2: Convert to fraction form
    45,915.86/68,874.57 = 12,635.73/x
  3. Step 3: Cross multiply
    45,915.86x = 68,874.57 × 12,635.73
  4. Step 4: Simplify right side
    45,915.86x = 870,280,470.39
  5. Step 5: Solve for x
    x = 870,280,470.39/45,915.86
  6. Step 6: Final answer
    x = 18,953.81

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1.5x scale

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.