Home / 85,090.97-127,715.27-43,000.67

Finding the Fourth Proportional to 85,090.97, 127,715.27 and 43,000.67

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Solution

The fourth proportional to 85,090.97, 127,715.27 and 43,000.67 is: 64,540.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,090.97 : 127,715.27 = 43,000.67 : x
  2. Step 2: Convert to fraction form
    85,090.97/127,715.27 = 43,000.67/x
  3. Step 3: Cross multiply
    85,090.97x = 127,715.27 × 43,000.67
  4. Step 4: Simplify right side
    85,090.97x = 5,491,842,283.52
  5. Step 5: Solve for x
    x = 5,491,842,283.52/85,090.97
  6. Step 6: Final answer
    x = 64,540.83

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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.