Home / 55,803.20-83,719.38-18,369.06

Finding the Fourth Proportional to 55,803.20, 83,719.38 and 18,369.06

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Solution

The fourth proportional to 55,803.20, 83,719.38 and 18,369.06 is: 27,558.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,803.20 : 83,719.38 = 18,369.06 : x
  2. Step 2: Convert to fraction form
    55,803.20/83,719.38 = 18,369.06/x
  3. Step 3: Cross multiply
    55,803.20x = 83,719.38 × 18,369.06
  4. Step 4: Simplify right side
    55,803.20x = 1,537,846,314.38
  5. Step 5: Solve for x
    x = 1,537,846,314.38/55,803.20
  6. Step 6: Final answer
    x = 27,558.39

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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.