Home / 56,722.50-85,074.41-21,174.49

Finding the Fourth Proportional to 56,722.50, 85,074.41 and 21,174.49

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Solution

The fourth proportional to 56,722.50, 85,074.41 and 21,174.49 is: 31,758.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,722.50 : 85,074.41 = 21,174.49 : x
  2. Step 2: Convert to fraction form
    56,722.50/85,074.41 = 21,174.49/x
  3. Step 3: Cross multiply
    56,722.50x = 85,074.41 × 21,174.49
  4. Step 4: Simplify right side
    56,722.50x = 1,801,407,243.80
  5. Step 5: Solve for x
    x = 1,801,407,243.80/56,722.50
  6. Step 6: Final answer
    x = 31,758.25

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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.