Home / 68,441.12-94,422.24-40,136.48

Finding the Fourth Proportional to 68,441.12, 94,422.24 and 40,136.48

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Solution

The fourth proportional to 68,441.12, 94,422.24 and 40,136.48 is: 55,372.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,441.12 : 94,422.24 = 40,136.48 : x
  2. Step 2: Convert to fraction form
    68,441.12/94,422.24 = 40,136.48/x
  3. Step 3: Cross multiply
    68,441.12x = 94,422.24 × 40,136.48
  4. Step 4: Simplify right side
    68,441.12x = 3,789,776,347.32
  5. Step 5: Solve for x
    x = 3,789,776,347.32/68,441.12
  6. Step 6: Final answer
    x = 55,372.80

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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.