Home / 45,941.85-68,913.09-12,663.72

Finding the Fourth Proportional to 45,941.85, 68,913.09 and 12,663.72

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Solution

The fourth proportional to 45,941.85, 68,913.09 and 12,663.72 is: 18,995.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,941.85 : 68,913.09 = 12,663.72 : x
  2. Step 2: Convert to fraction form
    45,941.85/68,913.09 = 12,663.72/x
  3. Step 3: Cross multiply
    45,941.85x = 68,913.09 × 12,663.72
  4. Step 4: Simplify right side
    45,941.85x = 872,696,076.09
  5. Step 5: Solve for x
    x = 872,696,076.09/45,941.85
  6. Step 6: Final answer
    x = 18,995.67

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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.