Home / 40,786.56-61,188.48-12,705.84

Finding the Fourth Proportional to 40,786.56, 61,188.48 and 12,705.84

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Solution

The fourth proportional to 40,786.56, 61,188.48 and 12,705.84 is: 19,061.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,786.56 : 61,188.48 = 12,705.84 : x
  2. Step 2: Convert to fraction form
    40,786.56/61,188.48 = 12,705.84/x
  3. Step 3: Cross multiply
    40,786.56x = 61,188.48 × 12,705.84
  4. Step 4: Simplify right side
    40,786.56x = 777,451,036.72
  5. Step 5: Solve for x
    x = 777,451,036.72/40,786.56
  6. Step 6: Final answer
    x = 19,061.45

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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.