Home / 54,324.95-81,440.30-21,022.09

Finding the Fourth Proportional to 54,324.95, 81,440.30 and 21,022.09

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Solution

The fourth proportional to 54,324.95, 81,440.30 and 21,022.09 is: 31,514.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,324.95 : 81,440.30 = 21,022.09 : x
  2. Step 2: Convert to fraction form
    54,324.95/81,440.30 = 21,022.09/x
  3. Step 3: Cross multiply
    54,324.95x = 81,440.30 × 21,022.09
  4. Step 4: Simplify right side
    54,324.95x = 1,712,045,165.18
  5. Step 5: Solve for x
    x = 1,712,045,165.18/54,324.95
  6. Step 6: Final answer
    x = 31,514.90

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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.