Home / 54,507.17-81,783.99-21,250.64

Finding the Fourth Proportional to 54,507.17, 81,783.99 and 21,250.64

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Solution

The fourth proportional to 54,507.17, 81,783.99 and 21,250.64 is: 31,885.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,507.17 : 81,783.99 = 21,250.64 : x
  2. Step 2: Convert to fraction form
    54,507.17/81,783.99 = 21,250.64/x
  3. Step 3: Cross multiply
    54,507.17x = 81,783.99 × 21,250.64
  4. Step 4: Simplify right side
    54,507.17x = 1,737,962,129.25
  5. Step 5: Solve for x
    x = 1,737,962,129.25/54,507.17
  6. Step 6: Final answer
    x = 31,885.02

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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.