Home / 85,512.96-118,040.88-76,544.64

Finding the Fourth Proportional to 85,512.96, 118,040.88 and 76,544.64

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Solution

The fourth proportional to 85,512.96, 118,040.88 and 76,544.64 is: 105,661.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,512.96 : 118,040.88 = 76,544.64 : x
  2. Step 2: Convert to fraction form
    85,512.96/118,040.88 = 76,544.64/x
  3. Step 3: Cross multiply
    85,512.96x = 118,040.88 × 76,544.64
  4. Step 4: Simplify right side
    85,512.96x = 9,035,396,664.88
  5. Step 5: Solve for x
    x = 9,035,396,664.88/85,512.96
  6. Step 6: Final answer
    x = 105,661.14

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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.