Home / 86,108.27-129,085.85-33,505.45

Finding the Fourth Proportional to 86,108.27, 129,085.85 and 33,505.45

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Solution

The fourth proportional to 86,108.27, 129,085.85 and 33,505.45 is: 50,228.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,108.27 : 129,085.85 = 33,505.45 : x
  2. Step 2: Convert to fraction form
    86,108.27/129,085.85 = 33,505.45/x
  3. Step 3: Cross multiply
    86,108.27x = 129,085.85 × 33,505.45
  4. Step 4: Simplify right side
    86,108.27x = 4,325,079,253.93
  5. Step 5: Solve for x
    x = 4,325,079,253.93/86,108.27
  6. Step 6: Final answer
    x = 50,228.39

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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.