Home / 43,078.38-64,606.77-30,561.90

Finding the Fourth Proportional to 43,078.38, 64,606.77 and 30,561.90

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Solution

The fourth proportional to 43,078.38, 64,606.77 and 30,561.90 is: 45,835.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,078.38 : 64,606.77 = 30,561.90 : x
  2. Step 2: Convert to fraction form
    43,078.38/64,606.77 = 30,561.90/x
  3. Step 3: Cross multiply
    43,078.38x = 64,606.77 × 30,561.90
  4. Step 4: Simplify right side
    43,078.38x = 1,974,505,644.06
  5. Step 5: Solve for x
    x = 1,974,505,644.06/43,078.38
  6. Step 6: Final answer
    x = 45,835.19

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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.