Home / 55,719.12-83,519.99-18,269.43

Finding the Fourth Proportional to 55,719.12, 83,519.99 and 18,269.43

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Solution

The fourth proportional to 55,719.12, 83,519.99 and 18,269.43 is: 27,384.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,719.12 : 83,519.99 = 18,269.43 : x
  2. Step 2: Convert to fraction form
    55,719.12/83,519.99 = 18,269.43/x
  3. Step 3: Cross multiply
    55,719.12x = 83,519.99 × 18,269.43
  4. Step 4: Simplify right side
    55,719.12x = 1,525,862,519.56
  5. Step 5: Solve for x
    x = 1,525,862,519.56/55,719.12
  6. Step 6: Final answer
    x = 27,384.90

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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.