Home / 82,956.10-124,434.15-20,626.60

Finding the Fourth Proportional to 82,956.10, 124,434.15 and 20,626.60

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Solution

The fourth proportional to 82,956.10, 124,434.15 and 20,626.60 is: 30,939.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,956.10 : 124,434.15 = 20,626.60 : x
  2. Step 2: Convert to fraction form
    82,956.10/124,434.15 = 20,626.60/x
  3. Step 3: Cross multiply
    82,956.10x = 124,434.15 × 20,626.60
  4. Step 4: Simplify right side
    82,956.10x = 2,566,653,438.39
  5. Step 5: Solve for x
    x = 2,566,653,438.39/82,956.10
  6. Step 6: Final answer
    x = 30,939.90

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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.