Home / 85,241.21-117,683.27-75,783.60

Finding the Fourth Proportional to 85,241.21, 117,683.27 and 75,783.60

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Solution

The fourth proportional to 85,241.21, 117,683.27 and 75,783.60 is: 104,626.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,241.21 : 117,683.27 = 75,783.60 : x
  2. Step 2: Convert to fraction form
    85,241.21/117,683.27 = 75,783.60/x
  3. Step 3: Cross multiply
    85,241.21x = 117,683.27 × 75,783.60
  4. Step 4: Simplify right side
    85,241.21x = 8,918,461,860.37
  5. Step 5: Solve for x
    x = 8,918,461,860.37/85,241.21
  6. Step 6: Final answer
    x = 104,626.18

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1.5x scale

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.