Home / 68,279.10-102,449.61-30,818.94

Finding the Fourth Proportional to 68,279.10, 102,449.61 and 30,818.94

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Solution

The fourth proportional to 68,279.10, 102,449.61 and 30,818.94 is: 46,242.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,279.10 : 102,449.61 = 30,818.94 : x
  2. Step 2: Convert to fraction form
    68,279.10/102,449.61 = 30,818.94/x
  3. Step 3: Cross multiply
    68,279.10x = 102,449.61 × 30,818.94
  4. Step 4: Simplify right side
    68,279.10x = 3,157,388,383.61
  5. Step 5: Solve for x
    x = 3,157,388,383.61/68,279.10
  6. Step 6: Final answer
    x = 46,242.38

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1.5x scale

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.