Home / 86,998.12-130,505.82-27,818.92

Finding the Fourth Proportional to 86,998.12, 130,505.82 and 27,818.92

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Solution

The fourth proportional to 86,998.12, 130,505.82 and 27,818.92 is: 41,731.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,998.12 : 130,505.82 = 27,818.92 : x
  2. Step 2: Convert to fraction form
    86,998.12/130,505.82 = 27,818.92/x
  3. Step 3: Cross multiply
    86,998.12x = 130,505.82 × 27,818.92
  4. Step 4: Simplify right side
    86,998.12x = 3,630,530,966.11
  5. Step 5: Solve for x
    x = 3,630,530,966.11/86,998.12
  6. Step 6: Final answer
    x = 41,731.14

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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.