Home / 49,128.68-67,799.40-27,911.54

Finding the Fourth Proportional to 49,128.68, 67,799.40 and 27,911.54

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Solution

The fourth proportional to 49,128.68, 67,799.40 and 27,911.54 is: 38,518.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,128.68 : 67,799.40 = 27,911.54 : x
  2. Step 2: Convert to fraction form
    49,128.68/67,799.40 = 27,911.54/x
  3. Step 3: Cross multiply
    49,128.68x = 67,799.40 × 27,911.54
  4. Step 4: Simplify right side
    49,128.68x = 1,892,385,729.91
  5. Step 5: Solve for x
    x = 1,892,385,729.91/49,128.68
  6. Step 6: Final answer
    x = 38,518.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.