Home / 49,687.21-74,448.91-28,644.99

Finding the Fourth Proportional to 49,687.21, 74,448.91 and 28,644.99

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Solution

The fourth proportional to 49,687.21, 74,448.91 and 28,644.99 is: 42,920.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,687.21 : 74,448.91 = 28,644.99 : x
  2. Step 2: Convert to fraction form
    49,687.21/74,448.91 = 28,644.99/x
  3. Step 3: Cross multiply
    49,687.21x = 74,448.91 × 28,644.99
  4. Step 4: Simplify right side
    49,687.21x = 2,132,588,282.46
  5. Step 5: Solve for x
    x = 2,132,588,282.46/49,687.21
  6. Step 6: Final answer
    x = 42,920.27

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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.