Home / 54,558.75-75,285.21-30,680.36

Finding the Fourth Proportional to 54,558.75, 75,285.21 and 30,680.36

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Solution

The fourth proportional to 54,558.75, 75,285.21 and 30,680.36 is: 42,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,558.75 : 75,285.21 = 30,680.36 : x
  2. Step 2: Convert to fraction form
    54,558.75/75,285.21 = 30,680.36/x
  3. Step 3: Cross multiply
    54,558.75x = 75,285.21 × 30,680.36
  4. Step 4: Simplify right side
    54,558.75x = 2,309,777,345.48
  5. Step 5: Solve for x
    x = 2,309,777,345.48/54,558.75
  6. Step 6: Final answer
    x = 42,335.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.