Home / 82,975.92-124,463.70-20,646.42

Finding the Fourth Proportional to 82,975.92, 124,463.70 and 20,646.42

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Solution

The fourth proportional to 82,975.92, 124,463.70 and 20,646.42 is: 30,969.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,975.92 : 124,463.70 = 20,646.42 : x
  2. Step 2: Convert to fraction form
    82,975.92/124,463.70 = 20,646.42/x
  3. Step 3: Cross multiply
    82,975.92x = 124,463.70 × 20,646.42
  4. Step 4: Simplify right side
    82,975.92x = 2,569,729,824.95
  5. Step 5: Solve for x
    x = 2,569,729,824.95/82,975.92
  6. Step 6: Final answer
    x = 30,969.59

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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.