Home / 85,725.18-128,586.24-23,395.68

Finding the Fourth Proportional to 85,725.18, 128,586.24 and 23,395.68

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Solution

The fourth proportional to 85,725.18, 128,586.24 and 23,395.68 is: 35,093.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,725.18 : 128,586.24 = 23,395.68 : x
  2. Step 2: Convert to fraction form
    85,725.18/128,586.24 = 23,395.68/x
  3. Step 3: Cross multiply
    85,725.18x = 128,586.24 × 23,395.68
  4. Step 4: Simplify right side
    85,725.18x = 3,008,362,523.44
  5. Step 5: Solve for x
    x = 3,008,362,523.44/85,725.18
  6. Step 6: Final answer
    x = 35,093.10

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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.