Home / 43,156.11-64,728.68-18,206.07

Finding the Fourth Proportional to 43,156.11, 64,728.68 and 18,206.07

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Solution

The fourth proportional to 43,156.11, 64,728.68 and 18,206.07 is: 27,306.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,156.11 : 64,728.68 = 18,206.07 : x
  2. Step 2: Convert to fraction form
    43,156.11/64,728.68 = 18,206.07/x
  3. Step 3: Cross multiply
    43,156.11x = 64,728.68 × 18,206.07
  4. Step 4: Simplify right side
    43,156.11x = 1,178,454,788.06
  5. Step 5: Solve for x
    x = 1,178,454,788.06/43,156.11
  6. Step 6: Final answer
    x = 27,306.79

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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.