Home / 66,738.10-100,077.63-19,982.26

Finding the Fourth Proportional to 66,738.10, 100,077.63 and 19,982.26

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Solution

The fourth proportional to 66,738.10, 100,077.63 and 19,982.26 is: 29,964.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,738.10 : 100,077.63 = 19,982.26 : x
  2. Step 2: Convert to fraction form
    66,738.10/100,077.63 = 19,982.26/x
  3. Step 3: Cross multiply
    66,738.10x = 100,077.63 × 19,982.26
  4. Step 4: Simplify right side
    66,738.10x = 1,999,777,222.84
  5. Step 5: Solve for x
    x = 1,999,777,222.84/66,738.10
  6. Step 6: Final answer
    x = 29,964.55

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1.5x scale

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.