Home / 43,085.43-64,620.84-11,913.39

Finding the Fourth Proportional to 43,085.43, 64,620.84 and 11,913.39

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Solution

The fourth proportional to 43,085.43, 64,620.84 and 11,913.39 is: 17,868.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,085.43 : 64,620.84 = 11,913.39 : x
  2. Step 2: Convert to fraction form
    43,085.43/64,620.84 = 11,913.39/x
  3. Step 3: Cross multiply
    43,085.43x = 64,620.84 × 11,913.39
  4. Step 4: Simplify right side
    43,085.43x = 769,853,269.05
  5. Step 5: Solve for x
    x = 769,853,269.05/43,085.43
  6. Step 6: Final answer
    x = 17,868.07

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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.