Home / 52,116.75-78,174.03-12,674.07

Finding the Fourth Proportional to 52,116.75, 78,174.03 and 12,674.07

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Solution

The fourth proportional to 52,116.75, 78,174.03 and 12,674.07 is: 19,010.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,116.75 : 78,174.03 = 12,674.07 : x
  2. Step 2: Convert to fraction form
    52,116.75/78,174.03 = 12,674.07/x
  3. Step 3: Cross multiply
    52,116.75x = 78,174.03 × 12,674.07
  4. Step 4: Simplify right side
    52,116.75x = 990,783,128.40
  5. Step 5: Solve for x
    x = 990,783,128.40/52,116.75
  6. Step 6: Final answer
    x = 19,010.84

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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.