Home / 86,285.34-129,419.46-27,119.52

Finding the Fourth Proportional to 86,285.34, 129,419.46 and 27,119.52

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Solution

The fourth proportional to 86,285.34, 129,419.46 and 27,119.52 is: 40,676.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,285.34 : 129,419.46 = 27,119.52 : x
  2. Step 2: Convert to fraction form
    86,285.34/129,419.46 = 27,119.52/x
  3. Step 3: Cross multiply
    86,285.34x = 129,419.46 × 27,119.52
  4. Step 4: Simplify right side
    86,285.34x = 3,509,793,633.86
  5. Step 5: Solve for x
    x = 3,509,793,633.86/86,285.34
  6. Step 6: Final answer
    x = 40,676.59

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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.