Home / 85,078.56-127,617.84-35,103.75

Finding the Fourth Proportional to 85,078.56, 127,617.84 and 35,103.75

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Solution

The fourth proportional to 85,078.56, 127,617.84 and 35,103.75 is: 52,655.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,078.56 : 127,617.84 = 35,103.75 : x
  2. Step 2: Convert to fraction form
    85,078.56/127,617.84 = 35,103.75/x
  3. Step 3: Cross multiply
    85,078.56x = 127,617.84 × 35,103.75
  4. Step 4: Simplify right side
    85,078.56x = 4,479,864,750.90
  5. Step 5: Solve for x
    x = 4,479,864,750.90/85,078.56
  6. Step 6: Final answer
    x = 52,655.63

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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.