Home / 54,215.58-81,334.77-18,680.13

Finding the Fourth Proportional to 54,215.58, 81,334.77 and 18,680.13

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Solution

The fourth proportional to 54,215.58, 81,334.77 and 18,680.13 is: 28,024.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,215.58 : 81,334.77 = 18,680.13 : x
  2. Step 2: Convert to fraction form
    54,215.58/81,334.77 = 18,680.13/x
  3. Step 3: Cross multiply
    54,215.58x = 81,334.77 × 18,680.13
  4. Step 4: Simplify right side
    54,215.58x = 1,519,344,077.12
  5. Step 5: Solve for x
    x = 1,519,344,077.12/54,215.58
  6. Step 6: Final answer
    x = 28,024.12

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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.