Home / 54,639.96-81,956.16-21,353.64

Finding the Fourth Proportional to 54,639.96, 81,956.16 and 21,353.64

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Solution

The fourth proportional to 54,639.96, 81,956.16 and 21,353.64 is: 32,028.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,639.96 : 81,956.16 = 21,353.64 : x
  2. Step 2: Convert to fraction form
    54,639.96/81,956.16 = 21,353.64/x
  3. Step 3: Cross multiply
    54,639.96x = 81,956.16 × 21,353.64
  4. Step 4: Simplify right side
    54,639.96x = 1,750,062,336.42
  5. Step 5: Solve for x
    x = 1,750,062,336.42/54,639.96
  6. Step 6: Final answer
    x = 32,028.98

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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.