Home / 77,907.42-116,880.75-21,747.45

Finding the Fourth Proportional to 77,907.42, 116,880.75 and 21,747.45

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Solution

The fourth proportional to 77,907.42, 116,880.75 and 21,747.45 is: 32,626.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,907.42 : 116,880.75 = 21,747.45 : x
  2. Step 2: Convert to fraction form
    77,907.42/116,880.75 = 21,747.45/x
  3. Step 3: Cross multiply
    77,907.42x = 116,880.75 × 21,747.45
  4. Step 4: Simplify right side
    77,907.42x = 2,541,858,266.59
  5. Step 5: Solve for x
    x = 2,541,858,266.59/77,907.42
  6. Step 6: Final answer
    x = 32,626.65

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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.