Home / 82,960.86-124,441.38-20,631.36

Finding the Fourth Proportional to 82,960.86, 124,441.38 and 20,631.36

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Solution

The fourth proportional to 82,960.86, 124,441.38 and 20,631.36 is: 30,947.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,960.86 : 124,441.38 = 20,631.36 : x
  2. Step 2: Convert to fraction form
    82,960.86/124,441.38 = 20,631.36/x
  3. Step 3: Cross multiply
    82,960.86x = 124,441.38 × 20,631.36
  4. Step 4: Simplify right side
    82,960.86x = 2,567,394,909.68
  5. Step 5: Solve for x
    x = 2,567,394,909.68/82,960.86
  6. Step 6: Final answer
    x = 30,947.06

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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.