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Finding the Fourth Proportional to 68,128.78, 102,045.46 and 32,994.76

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Solution

The fourth proportional to 68,128.78, 102,045.46 and 32,994.76 is: 49,420.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,128.78 : 102,045.46 = 32,994.76 : x
  2. Step 2: Convert to fraction form
    68,128.78/102,045.46 = 32,994.76/x
  3. Step 3: Cross multiply
    68,128.78x = 102,045.46 × 32,994.76
  4. Step 4: Simplify right side
    68,128.78x = 3,366,965,461.79
  5. Step 5: Solve for x
    x = 3,366,965,461.79/68,128.78
  6. Step 6: Final answer
    x = 49,420.60

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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.