Home / 86,376.35-129,557.23-27,203.42

Finding the Fourth Proportional to 86,376.35, 129,557.23 and 27,203.42

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Solution

The fourth proportional to 86,376.35, 129,557.23 and 27,203.42 is: 40,802.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,376.35 : 129,557.23 = 27,203.42 : x
  2. Step 2: Convert to fraction form
    86,376.35/129,557.23 = 27,203.42/x
  3. Step 3: Cross multiply
    86,376.35x = 129,557.23 × 27,203.42
  4. Step 4: Simplify right side
    86,376.35x = 3,524,399,741.73
  5. Step 5: Solve for x
    x = 3,524,399,741.73/86,376.35
  6. Step 6: Final answer
    x = 40,802.83

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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.