Home / 55,143.51-82,638.54-28,795.65

Finding the Fourth Proportional to 55,143.51, 82,638.54 and 28,795.65

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Solution

The fourth proportional to 55,143.51, 82,638.54 and 28,795.65 is: 43,153.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,143.51 : 82,638.54 = 28,795.65 : x
  2. Step 2: Convert to fraction form
    55,143.51/82,638.54 = 28,795.65/x
  3. Step 3: Cross multiply
    55,143.51x = 82,638.54 × 28,795.65
  4. Step 4: Simplify right side
    55,143.51x = 2,379,630,474.35
  5. Step 5: Solve for x
    x = 2,379,630,474.35/55,143.51
  6. Step 6: Final answer
    x = 43,153.41

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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.