Home / 68,623.20-102,934.80-56,157.30

Finding the Fourth Proportional to 68,623.20, 102,934.80 and 56,157.30

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Solution

The fourth proportional to 68,623.20, 102,934.80 and 56,157.30 is: 84,235.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,623.20 : 102,934.80 = 56,157.30 : x
  2. Step 2: Convert to fraction form
    68,623.20/102,934.80 = 56,157.30/x
  3. Step 3: Cross multiply
    68,623.20x = 102,934.80 × 56,157.30
  4. Step 4: Simplify right side
    68,623.20x = 5,780,540,444.04
  5. Step 5: Solve for x
    x = 5,780,540,444.04/68,623.20
  6. Step 6: Final answer
    x = 84,235.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.