Home / 86,559.72-129,845.52-51,072.92

Finding the Fourth Proportional to 86,559.72, 129,845.52 and 51,072.92

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Solution

The fourth proportional to 86,559.72, 129,845.52 and 51,072.92 is: 76,612.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,559.72 : 129,845.52 = 51,072.92 : x
  2. Step 2: Convert to fraction form
    86,559.72/129,845.52 = 51,072.92/x
  3. Step 3: Cross multiply
    86,559.72x = 129,845.52 × 51,072.92
  4. Step 4: Simplify right side
    86,559.72x = 6,631,589,855.32
  5. Step 5: Solve for x
    x = 6,631,589,855.32/86,559.72
  6. Step 6: Final answer
    x = 76,612.88

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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.