Home / 45,801.57-68,706.45-12,521.81

Finding the Fourth Proportional to 45,801.57, 68,706.45 and 12,521.81

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Solution

The fourth proportional to 45,801.57, 68,706.45 and 12,521.81 is: 18,783.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,801.57 : 68,706.45 = 12,521.81 : x
  2. Step 2: Convert to fraction form
    45,801.57/68,706.45 = 12,521.81/x
  3. Step 3: Cross multiply
    45,801.57x = 68,706.45 × 12,521.81
  4. Step 4: Simplify right side
    45,801.57x = 860,328,769.14
  5. Step 5: Solve for x
    x = 860,328,769.14/45,801.57
  6. Step 6: Final answer
    x = 18,783.83

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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.