Home / 83,412.20-125,129.10-41,313.80

Finding the Fourth Proportional to 83,412.20, 125,129.10 and 41,313.80

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Solution

The fourth proportional to 83,412.20, 125,129.10 and 41,313.80 is: 61,976.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,412.20 : 125,129.10 = 41,313.80 : x
  2. Step 2: Convert to fraction form
    83,412.20/125,129.10 = 41,313.80/x
  3. Step 3: Cross multiply
    83,412.20x = 125,129.10 × 41,313.80
  4. Step 4: Simplify right side
    83,412.20x = 5,169,558,611.58
  5. Step 5: Solve for x
    x = 5,169,558,611.58/83,412.20
  6. Step 6: Final answer
    x = 61,976.05

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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.