Home / 73,155.21-109,626.80-30,977.07

Finding the Fourth Proportional to 73,155.21, 109,626.80 and 30,977.07

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Solution

The fourth proportional to 73,155.21, 109,626.80 and 30,977.07 is: 46,420.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,155.21 : 109,626.80 = 30,977.07 : x
  2. Step 2: Convert to fraction form
    73,155.21/109,626.80 = 30,977.07/x
  3. Step 3: Cross multiply
    73,155.21x = 109,626.80 × 30,977.07
  4. Step 4: Simplify right side
    73,155.21x = 3,395,916,902.59
  5. Step 5: Solve for x
    x = 3,395,916,902.59/73,155.21
  6. Step 6: Final answer
    x = 46,420.71

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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.