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Finding the Fourth Proportional to 68,392.21, 94,382.85 and 42,899.65

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Solution

The fourth proportional to 68,392.21, 94,382.85 and 42,899.65 is: 59,202.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,392.21 : 94,382.85 = 42,899.65 : x
  2. Step 2: Convert to fraction form
    68,392.21/94,382.85 = 42,899.65/x
  3. Step 3: Cross multiply
    68,392.21x = 94,382.85 × 42,899.65
  4. Step 4: Simplify right side
    68,392.21x = 4,048,991,231.00
  5. Step 5: Solve for x
    x = 4,048,991,231.00/68,392.21
  6. Step 6: Final answer
    x = 59,202.52

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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.