Home / 206,579.94-309,871.27-56,836.05

Finding the Fourth Proportional to 206,579.94, 309,871.27 and 56,836.05

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Solution

The fourth proportional to 206,579.94, 309,871.27 and 56,836.05 is: 85,254.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,579.94 : 309,871.27 = 56,836.05 : x
  2. Step 2: Convert to fraction form
    206,579.94/309,871.27 = 56,836.05/x
  3. Step 3: Cross multiply
    206,579.94x = 309,871.27 × 56,836.05
  4. Step 4: Simplify right side
    206,579.94x = 17,611,857,904.31
  5. Step 5: Solve for x
    x = 17,611,857,904.31/206,579.94
  6. Step 6: Final answer
    x = 85,254.45

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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.