Home / 81,849.99-122,508.59-45,766.92

Finding the Fourth Proportional to 81,849.99, 122,508.59 and 45,766.92

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Solution

The fourth proportional to 81,849.99, 122,508.59 and 45,766.92 is: 68,501.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,849.99 : 122,508.59 = 45,766.92 : x
  2. Step 2: Convert to fraction form
    81,849.99/122,508.59 = 45,766.92/x
  3. Step 3: Cross multiply
    81,849.99x = 122,508.59 × 45,766.92
  4. Step 4: Simplify right side
    81,849.99x = 5,606,840,837.84
  5. Step 5: Solve for x
    x = 5,606,840,837.84/81,849.99
  6. Step 6: Final answer
    x = 68,501.42

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1.5x scale

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.