Home / 85,351.56-128,025.60-26,185.92

Finding the Fourth Proportional to 85,351.56, 128,025.60 and 26,185.92

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Solution

The fourth proportional to 85,351.56, 128,025.60 and 26,185.92 is: 39,278.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,351.56 : 128,025.60 = 26,185.92 : x
  2. Step 2: Convert to fraction form
    85,351.56/128,025.60 = 26,185.92/x
  3. Step 3: Cross multiply
    85,351.56x = 128,025.60 × 26,185.92
  4. Step 4: Simplify right side
    85,351.56x = 3,352,468,119.55
  5. Step 5: Solve for x
    x = 3,352,468,119.55/85,351.56
  6. Step 6: Final answer
    x = 39,278.35

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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.