Home / 45,322.20-67,910.40-28,652.40

Finding the Fourth Proportional to 45,322.20, 67,910.40 and 28,652.40

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Solution

The fourth proportional to 45,322.20, 67,910.40 and 28,652.40 is: 42,932.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,322.20 : 67,910.40 = 28,652.40 : x
  2. Step 2: Convert to fraction form
    45,322.20/67,910.40 = 28,652.40/x
  3. Step 3: Cross multiply
    45,322.20x = 67,910.40 × 28,652.40
  4. Step 4: Simplify right side
    45,322.20x = 1,945,795,944.96
  5. Step 5: Solve for x
    x = 1,945,795,944.96/45,322.20
  6. Step 6: Final answer
    x = 42,932.51

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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.