Home / 85,968.38-128,911.09-36,035.07

Finding the Fourth Proportional to 85,968.38, 128,911.09 and 36,035.07

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Solution

The fourth proportional to 85,968.38, 128,911.09 and 36,035.07 is: 54,035.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,968.38 : 128,911.09 = 36,035.07 : x
  2. Step 2: Convert to fraction form
    85,968.38/128,911.09 = 36,035.07/x
  3. Step 3: Cross multiply
    85,968.38x = 128,911.09 × 36,035.07
  4. Step 4: Simplify right side
    85,968.38x = 4,645,319,961.27
  5. Step 5: Solve for x
    x = 4,645,319,961.27/85,968.38
  6. Step 6: Final answer
    x = 54,035.22

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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.