Home / 45,721.72-68,575.65-12,444.38

Finding the Fourth Proportional to 45,721.72, 68,575.65 and 12,444.38

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Solution

The fourth proportional to 45,721.72, 68,575.65 and 12,444.38 is: 18,664.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,721.72 : 68,575.65 = 12,444.38 : x
  2. Step 2: Convert to fraction form
    45,721.72/68,575.65 = 12,444.38/x
  3. Step 3: Cross multiply
    45,721.72x = 68,575.65 × 12,444.38
  4. Step 4: Simplify right side
    45,721.72x = 853,381,042.25
  5. Step 5: Solve for x
    x = 853,381,042.25/45,721.72
  6. Step 6: Final answer
    x = 18,664.67

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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.