Home / 73,724.20-101,739.40-40,190.20

Finding the Fourth Proportional to 73,724.20, 101,739.40 and 40,190.20

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Solution

The fourth proportional to 73,724.20, 101,739.40 and 40,190.20 is: 55,462.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,724.20 : 101,739.40 = 40,190.20 : x
  2. Step 2: Convert to fraction form
    73,724.20/101,739.40 = 40,190.20/x
  3. Step 3: Cross multiply
    73,724.20x = 101,739.40 × 40,190.20
  4. Step 4: Simplify right side
    73,724.20x = 4,088,926,833.88
  5. Step 5: Solve for x
    x = 4,088,926,833.88/73,724.20
  6. Step 6: Final answer
    x = 55,462.48

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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.