Home / 90,976.56-125,548.50-50,142.15

Finding the Fourth Proportional to 90,976.56, 125,548.50 and 50,142.15

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Solution

The fourth proportional to 90,976.56, 125,548.50 and 50,142.15 is: 69,196.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,976.56 : 125,548.50 = 50,142.15 : x
  2. Step 2: Convert to fraction form
    90,976.56/125,548.50 = 50,142.15/x
  3. Step 3: Cross multiply
    90,976.56x = 125,548.50 × 50,142.15
  4. Step 4: Simplify right side
    90,976.56x = 6,295,271,091.53
  5. Step 5: Solve for x
    x = 6,295,271,091.53/90,976.56
  6. Step 6: Final answer
    x = 69,196.63

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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.