Home / 50,640.08-69,869.09-29,128.70

Finding the Fourth Proportional to 50,640.08, 69,869.09 and 29,128.70

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Solution

The fourth proportional to 50,640.08, 69,869.09 and 29,128.70 is: 40,189.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,640.08 : 69,869.09 = 29,128.70 : x
  2. Step 2: Convert to fraction form
    50,640.08/69,869.09 = 29,128.70/x
  3. Step 3: Cross multiply
    50,640.08x = 69,869.09 × 29,128.70
  4. Step 4: Simplify right side
    50,640.08x = 2,035,195,266.89
  5. Step 5: Solve for x
    x = 2,035,195,266.89/50,640.08
  6. Step 6: Final answer
    x = 40,189.42

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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.