Home / 68,490.36-94,341.05-48,311.88

Finding the Fourth Proportional to 68,490.36, 94,341.05 and 48,311.88

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Solution

The fourth proportional to 68,490.36, 94,341.05 and 48,311.88 is: 66,546.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,490.36 : 94,341.05 = 48,311.88 : x
  2. Step 2: Convert to fraction form
    68,490.36/94,341.05 = 48,311.88/x
  3. Step 3: Cross multiply
    68,490.36x = 94,341.05 × 48,311.88
  4. Step 4: Simplify right side
    68,490.36x = 4,557,793,245.11
  5. Step 5: Solve for x
    x = 4,557,793,245.11/68,490.36
  6. Step 6: Final answer
    x = 66,546.49

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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.