Home / 45,811.20-68,716.80-27,379.20

Finding the Fourth Proportional to 45,811.20, 68,716.80 and 27,379.20

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Solution

The fourth proportional to 45,811.20, 68,716.80 and 27,379.20 is: 41,068.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,811.20 : 68,716.80 = 27,379.20 : x
  2. Step 2: Convert to fraction form
    45,811.20/68,716.80 = 27,379.20/x
  3. Step 3: Cross multiply
    45,811.20x = 68,716.80 × 27,379.20
  4. Step 4: Simplify right side
    45,811.20x = 1,881,411,010.56
  5. Step 5: Solve for x
    x = 1,881,411,010.56/45,811.20
  6. Step 6: Final answer
    x = 41,068.80

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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.