Home / 54,679.20-82,022.84-19,619.16

Finding the Fourth Proportional to 54,679.20, 82,022.84 and 19,619.16

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Solution

The fourth proportional to 54,679.20, 82,022.84 and 19,619.16 is: 29,430.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,679.20 : 82,022.84 = 19,619.16 : x
  2. Step 2: Convert to fraction form
    54,679.20/82,022.84 = 19,619.16/x
  3. Step 3: Cross multiply
    54,679.20x = 82,022.84 × 19,619.16
  4. Step 4: Simplify right side
    54,679.20x = 1,609,219,221.61
  5. Step 5: Solve for x
    x = 1,609,219,221.61/54,679.20
  6. Step 6: Final answer
    x = 29,430.19

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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.