Home / 45,721.89-68,575.91-12,444.55

Finding the Fourth Proportional to 45,721.89, 68,575.91 and 12,444.55

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Solution

The fourth proportional to 45,721.89, 68,575.91 and 12,444.55 is: 18,664.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,721.89 : 68,575.91 = 12,444.55 : x
  2. Step 2: Convert to fraction form
    45,721.89/68,575.91 = 12,444.55/x
  3. Step 3: Cross multiply
    45,721.89x = 68,575.91 × 12,444.55
  4. Step 4: Simplify right side
    45,721.89x = 853,395,935.69
  5. Step 5: Solve for x
    x = 853,395,935.69/45,721.89
  6. Step 6: Final answer
    x = 18,664.93

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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.