Home / 54,215.57-81,303.12-18,666.84

Finding the Fourth Proportional to 54,215.57, 81,303.12 and 18,666.84

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Solution

The fourth proportional to 54,215.57, 81,303.12 and 18,666.84 is: 27,993.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,215.57 : 81,303.12 = 18,666.84 : x
  2. Step 2: Convert to fraction form
    54,215.57/81,303.12 = 18,666.84/x
  3. Step 3: Cross multiply
    54,215.57x = 81,303.12 × 18,666.84
  4. Step 4: Simplify right side
    54,215.57x = 1,517,672,332.54
  5. Step 5: Solve for x
    x = 1,517,672,332.54/54,215.57
  6. Step 6: Final answer
    x = 27,993.30

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1.5x scale

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.