Home / 45,137.35-67,740.10-30,871.73

Finding the Fourth Proportional to 45,137.35, 67,740.10 and 30,871.73

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Solution

The fourth proportional to 45,137.35, 67,740.10 and 30,871.73 is: 46,330.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,137.35 : 67,740.10 = 30,871.73 : x
  2. Step 2: Convert to fraction form
    45,137.35/67,740.10 = 30,871.73/x
  3. Step 3: Cross multiply
    45,137.35x = 67,740.10 × 30,871.73
  4. Step 4: Simplify right side
    45,137.35x = 2,091,254,169.54
  5. Step 5: Solve for x
    x = 2,091,254,169.54/45,137.35
  6. Step 6: Final answer
    x = 46,330.90

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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.