Home / 46,084.78-69,126.72-21,117.75

Finding the Fourth Proportional to 46,084.78, 69,126.72 and 21,117.75

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Solution

The fourth proportional to 46,084.78, 69,126.72 and 21,117.75 is: 31,676.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,084.78 : 69,126.72 = 21,117.75 : x
  2. Step 2: Convert to fraction form
    46,084.78/69,126.72 = 21,117.75/x
  3. Step 3: Cross multiply
    46,084.78x = 69,126.72 × 21,117.75
  4. Step 4: Simplify right side
    46,084.78x = 1,459,800,791.28
  5. Step 5: Solve for x
    x = 1,459,800,791.28/46,084.78
  6. Step 6: Final answer
    x = 31,676.42

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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.