Home / 68,739.08-94,855.44-40,439.30

Finding the Fourth Proportional to 68,739.08, 94,855.44 and 40,439.30

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Solution

The fourth proportional to 68,739.08, 94,855.44 and 40,439.30 is: 55,803.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,739.08 : 94,855.44 = 40,439.30 : x
  2. Step 2: Convert to fraction form
    68,739.08/94,855.44 = 40,439.30/x
  3. Step 3: Cross multiply
    68,739.08x = 94,855.44 × 40,439.30
  4. Step 4: Simplify right side
    68,739.08x = 3,835,887,594.79
  5. Step 5: Solve for x
    x = 3,835,887,594.79/68,739.08
  6. Step 6: Final answer
    x = 55,803.59

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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.