Home / 66,112.44-99,175.70-21,118.06

Finding the Fourth Proportional to 66,112.44, 99,175.70 and 21,118.06

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Solution

The fourth proportional to 66,112.44, 99,175.70 and 21,118.06 is: 31,679.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,112.44 : 99,175.70 = 21,118.06 : x
  2. Step 2: Convert to fraction form
    66,112.44/99,175.70 = 21,118.06/x
  3. Step 3: Cross multiply
    66,112.44x = 99,175.70 × 21,118.06
  4. Step 4: Simplify right side
    66,112.44x = 2,094,398,383.14
  5. Step 5: Solve for x
    x = 2,094,398,383.14/66,112.44
  6. Step 6: Final answer
    x = 31,679.34

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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.