Home / 85,682.07-128,519.42-23,352.57

Finding the Fourth Proportional to 85,682.07, 128,519.42 and 23,352.57

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Solution

The fourth proportional to 85,682.07, 128,519.42 and 23,352.57 is: 35,027.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,682.07 : 128,519.42 = 23,352.57 : x
  2. Step 2: Convert to fraction form
    85,682.07/128,519.42 = 23,352.57/x
  3. Step 3: Cross multiply
    85,682.07x = 128,519.42 × 23,352.57
  4. Step 4: Simplify right side
    85,682.07x = 3,001,258,635.15
  5. Step 5: Solve for x
    x = 3,001,258,635.15/85,682.07
  6. Step 6: Final answer
    x = 35,027.85

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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.