Home / 82,951.46-124,427.63-20,621.96

Finding the Fourth Proportional to 82,951.46, 124,427.63 and 20,621.96

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Solution

The fourth proportional to 82,951.46, 124,427.63 and 20,621.96 is: 30,933.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,951.46 : 124,427.63 = 20,621.96 : x
  2. Step 2: Convert to fraction form
    82,951.46/124,427.63 = 20,621.96/x
  3. Step 3: Cross multiply
    82,951.46x = 124,427.63 × 20,621.96
  4. Step 4: Simplify right side
    82,951.46x = 2,565,941,504.78
  5. Step 5: Solve for x
    x = 2,565,941,504.78/82,951.46
  6. Step 6: Final answer
    x = 30,933.05

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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.