Home / 68,716.60-94,827-40,424.20

Finding the Fourth Proportional to 68,716.60, 94,827 and 40,424.20

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Solution

The fourth proportional to 68,716.60, 94,827 and 40,424.20 is: 55,784.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,716.60 : 94,827 = 40,424.20 : x
  2. Step 2: Convert to fraction form
    68,716.60/94,827 = 40,424.20/x
  3. Step 3: Cross multiply
    68,716.60x = 94,827 × 40,424.20
  4. Step 4: Simplify right side
    68,716.60x = 3,833,305,613.40
  5. Step 5: Solve for x
    x = 3,833,305,613.40/68,716.60
  6. Step 6: Final answer
    x = 55,784.27

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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.