Home / 86,108.27-129,186.90-33,532.79

Finding the Fourth Proportional to 86,108.27, 129,186.90 and 33,532.79

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Solution

The fourth proportional to 86,108.27, 129,186.90 and 33,532.79 is: 50,308.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,108.27 : 129,186.90 = 33,532.79 : x
  2. Step 2: Convert to fraction form
    86,108.27/129,186.90 = 33,532.79/x
  3. Step 3: Cross multiply
    86,108.27x = 129,186.90 × 33,532.79
  4. Step 4: Simplify right side
    86,108.27x = 4,331,996,542.52
  5. Step 5: Solve for x
    x = 4,331,996,542.52/86,108.27
  6. Step 6: Final answer
    x = 50,308.72

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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.