Home / 68,716.64-94,840.80-40,423.52

Finding the Fourth Proportional to 68,716.64, 94,840.80 and 40,423.52

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Solution

The fourth proportional to 68,716.64, 94,840.80 and 40,423.52 is: 55,791.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,716.64 : 94,840.80 = 40,423.52 : x
  2. Step 2: Convert to fraction form
    68,716.64/94,840.80 = 40,423.52/x
  3. Step 3: Cross multiply
    68,716.64x = 94,840.80 × 40,423.52
  4. Step 4: Simplify right side
    68,716.64x = 3,833,798,975.62
  5. Step 5: Solve for x
    x = 3,833,798,975.62/68,716.64
  6. Step 6: Final answer
    x = 55,791.42

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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.