Home / 85,960.17-128,940.27-26,800.60

Finding the Fourth Proportional to 85,960.17, 128,940.27 and 26,800.60

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Solution

The fourth proportional to 85,960.17, 128,940.27 and 26,800.60 is: 40,200.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,960.17 : 128,940.27 = 26,800.60 : x
  2. Step 2: Convert to fraction form
    85,960.17/128,940.27 = 26,800.60/x
  3. Step 3: Cross multiply
    85,960.17x = 128,940.27 × 26,800.60
  4. Step 4: Simplify right side
    85,960.17x = 3,455,676,600.16
  5. Step 5: Solve for x
    x = 3,455,676,600.16/85,960.17
  6. Step 6: Final answer
    x = 40,200.90

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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.