Home / 61,975.89-92,912.01-28,719.78

Finding the Fourth Proportional to 61,975.89, 92,912.01 and 28,719.78

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Solution

The fourth proportional to 61,975.89, 92,912.01 and 28,719.78 is: 43,055.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,975.89 : 92,912.01 = 28,719.78 : x
  2. Step 2: Convert to fraction form
    61,975.89/92,912.01 = 28,719.78/x
  3. Step 3: Cross multiply
    61,975.89x = 92,912.01 × 28,719.78
  4. Step 4: Simplify right side
    61,975.89x = 2,668,412,486.56
  5. Step 5: Solve for x
    x = 2,668,412,486.56/61,975.89
  6. Step 6: Final answer
    x = 43,055.65

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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.