Home / 85,447.85-128,194.18-32,859.05

Finding the Fourth Proportional to 85,447.85, 128,194.18 and 32,859.05

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Solution

The fourth proportional to 85,447.85, 128,194.18 and 32,859.05 is: 49,297.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,447.85 : 128,194.18 = 32,859.05 : x
  2. Step 2: Convert to fraction form
    85,447.85/128,194.18 = 32,859.05/x
  3. Step 3: Cross multiply
    85,447.85x = 128,194.18 × 32,859.05
  4. Step 4: Simplify right side
    85,447.85x = 4,212,338,806.03
  5. Step 5: Solve for x
    x = 4,212,338,806.03/85,447.85
  6. Step 6: Final answer
    x = 49,297.19

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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.