Home / 56,199.68-84,311.86-21,139.34

Finding the Fourth Proportional to 56,199.68, 84,311.86 and 21,139.34

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Solution

The fourth proportional to 56,199.68, 84,311.86 and 21,139.34 is: 31,713.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,199.68 : 84,311.86 = 21,139.34 : x
  2. Step 2: Convert to fraction form
    56,199.68/84,311.86 = 21,139.34/x
  3. Step 3: Cross multiply
    56,199.68x = 84,311.86 × 21,139.34
  4. Step 4: Simplify right side
    56,199.68x = 1,782,297,074.57
  5. Step 5: Solve for x
    x = 1,782,297,074.57/56,199.68
  6. Step 6: Final answer
    x = 31,713.65

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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.