Home / 86,092.80-129,135.61-29,945.62

Finding the Fourth Proportional to 86,092.80, 129,135.61 and 29,945.62

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Solution

The fourth proportional to 86,092.80, 129,135.61 and 29,945.62 is: 44,917.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,092.80 : 129,135.61 = 29,945.62 : x
  2. Step 2: Convert to fraction form
    86,092.80/129,135.61 = 29,945.62/x
  3. Step 3: Cross multiply
    86,092.80x = 129,135.61 × 29,945.62
  4. Step 4: Simplify right side
    86,092.80x = 3,867,045,905.53
  5. Step 5: Solve for x
    x = 3,867,045,905.53/86,092.80
  6. Step 6: Final answer
    x = 44,917.18

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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.