Home / 85,682.93-128,546.56-50,174.25

Finding the Fourth Proportional to 85,682.93, 128,546.56 and 50,174.25

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Solution

The fourth proportional to 85,682.93, 128,546.56 and 50,174.25 is: 75,274.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,682.93 : 128,546.56 = 50,174.25 : x
  2. Step 2: Convert to fraction form
    85,682.93/128,546.56 = 50,174.25/x
  3. Step 3: Cross multiply
    85,682.93x = 128,546.56 × 50,174.25
  4. Step 4: Simplify right side
    85,682.93x = 6,449,726,818.75
  5. Step 5: Solve for x
    x = 6,449,726,818.75/85,682.93
  6. Step 6: Final answer
    x = 75,274.35

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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.