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Finding the Fourth Proportional to 86,879.94, 130,357.27 and 33,609.29

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Solution

The fourth proportional to 86,879.94, 130,357.27 and 33,609.29 is: 50,428.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,879.94 : 130,357.27 = 33,609.29 : x
  2. Step 2: Convert to fraction form
    86,879.94/130,357.27 = 33,609.29/x
  3. Step 3: Cross multiply
    86,879.94x = 130,357.27 × 33,609.29
  4. Step 4: Simplify right side
    86,879.94x = 4,381,215,692.36
  5. Step 5: Solve for x
    x = 4,381,215,692.36/86,879.94
  6. Step 6: Final answer
    x = 50,428.39

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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.