Home / 54,219.92-81,203.64-52,725.20

Finding the Fourth Proportional to 54,219.92, 81,203.64 and 52,725.20

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Solution

The fourth proportional to 54,219.92, 81,203.64 and 52,725.20 is: 78,965.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,219.92 : 81,203.64 = 52,725.20 : x
  2. Step 2: Convert to fraction form
    54,219.92/81,203.64 = 52,725.20/x
  3. Step 3: Cross multiply
    54,219.92x = 81,203.64 × 52,725.20
  4. Step 4: Simplify right side
    54,219.92x = 4,281,478,159.73
  5. Step 5: Solve for x
    x = 4,281,478,159.73/54,219.92
  6. Step 6: Final answer
    x = 78,965.04

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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.