Home / 45,121.91-67,682.04-15,539.09

Finding the Fourth Proportional to 45,121.91, 67,682.04 and 15,539.09

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Solution

The fourth proportional to 45,121.91, 67,682.04 and 15,539.09 is: 23,308.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,121.91 : 67,682.04 = 15,539.09 : x
  2. Step 2: Convert to fraction form
    45,121.91/67,682.04 = 15,539.09/x
  3. Step 3: Cross multiply
    45,121.91x = 67,682.04 × 15,539.09
  4. Step 4: Simplify right side
    45,121.91x = 1,051,716,972.53
  5. Step 5: Solve for x
    x = 1,051,716,972.53/45,121.91
  6. Step 6: Final answer
    x = 23,308.35

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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.