Home / 54,317.04-81,475.92-21,040.80

Finding the Fourth Proportional to 54,317.04, 81,475.92 and 21,040.80

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Solution

The fourth proportional to 54,317.04, 81,475.92 and 21,040.80 is: 31,561.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,317.04 : 81,475.92 = 21,040.80 : x
  2. Step 2: Convert to fraction form
    54,317.04/81,475.92 = 21,040.80/x
  3. Step 3: Cross multiply
    54,317.04x = 81,475.92 × 21,040.80
  4. Step 4: Simplify right side
    54,317.04x = 1,714,318,537.54
  5. Step 5: Solve for x
    x = 1,714,318,537.54/54,317.04
  6. Step 6: Final answer
    x = 31,561.34

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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.