Home / 54,215.99-81,328.10-16,779.85

Finding the Fourth Proportional to 54,215.99, 81,328.10 and 16,779.85

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Solution

The fourth proportional to 54,215.99, 81,328.10 and 16,779.85 is: 25,171.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,215.99 : 81,328.10 = 16,779.85 : x
  2. Step 2: Convert to fraction form
    54,215.99/81,328.10 = 16,779.85/x
  3. Step 3: Cross multiply
    54,215.99x = 81,328.10 × 16,779.85
  4. Step 4: Simplify right side
    54,215.99x = 1,364,673,283.90
  5. Step 5: Solve for x
    x = 1,364,673,283.90/54,215.99
  6. Step 6: Final answer
    x = 25,171.05

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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.