Home / 85,540.46-128,299.75-35,611.25

Finding the Fourth Proportional to 85,540.46, 128,299.75 and 35,611.25

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Solution

The fourth proportional to 85,540.46, 128,299.75 and 35,611.25 is: 53,412.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,540.46 : 128,299.75 = 35,611.25 : x
  2. Step 2: Convert to fraction form
    85,540.46/128,299.75 = 35,611.25/x
  3. Step 3: Cross multiply
    85,540.46x = 128,299.75 × 35,611.25
  4. Step 4: Simplify right side
    85,540.46x = 4,568,913,741.66
  5. Step 5: Solve for x
    x = 4,568,913,741.66/85,540.46
  6. Step 6: Final answer
    x = 53,412.32

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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.