Home / 66,258.36-91,474.25-43,663.01

Finding the Fourth Proportional to 66,258.36, 91,474.25 and 43,663.01

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Solution

The fourth proportional to 66,258.36, 91,474.25 and 43,663.01 is: 60,279.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,258.36 : 91,474.25 = 43,663.01 : x
  2. Step 2: Convert to fraction form
    66,258.36/91,474.25 = 43,663.01/x
  3. Step 3: Cross multiply
    66,258.36x = 91,474.25 × 43,663.01
  4. Step 4: Simplify right side
    66,258.36x = 3,994,040,416.81
  5. Step 5: Solve for x
    x = 3,994,040,416.81/66,258.36
  6. Step 6: Final answer
    x = 60,279.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.