Home / 85,727.10-128,591.10-23,397.60

Finding the Fourth Proportional to 85,727.10, 128,591.10 and 23,397.60

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Solution

The fourth proportional to 85,727.10, 128,591.10 and 23,397.60 is: 35,096.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,727.10 : 128,591.10 = 23,397.60 : x
  2. Step 2: Convert to fraction form
    85,727.10/128,591.10 = 23,397.60/x
  3. Step 3: Cross multiply
    85,727.10x = 128,591.10 × 23,397.60
  4. Step 4: Simplify right side
    85,727.10x = 3,008,723,121.36
  5. Step 5: Solve for x
    x = 3,008,723,121.36/85,727.10
  6. Step 6: Final answer
    x = 35,096.52

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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.