Home / 86,427.80-129,589.86-33,774.56

Finding the Fourth Proportional to 86,427.80, 129,589.86 and 33,774.56

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Solution

The fourth proportional to 86,427.80, 129,589.86 and 33,774.56 is: 50,641.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,427.80 : 129,589.86 = 33,774.56 : x
  2. Step 2: Convert to fraction form
    86,427.80/129,589.86 = 33,774.56/x
  3. Step 3: Cross multiply
    86,427.80x = 129,589.86 × 33,774.56
  4. Step 4: Simplify right side
    86,427.80x = 4,376,840,501.96
  5. Step 5: Solve for x
    x = 4,376,840,501.96/86,427.80
  6. Step 6: Final answer
    x = 50,641.58

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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.