Home / 82,704.20-124,056.30-51,211.40

Finding the Fourth Proportional to 82,704.20, 124,056.30 and 51,211.40

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Solution

The fourth proportional to 82,704.20, 124,056.30 and 51,211.40 is: 76,817.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,704.20 : 124,056.30 = 51,211.40 : x
  2. Step 2: Convert to fraction form
    82,704.20/124,056.30 = 51,211.40/x
  3. Step 3: Cross multiply
    82,704.20x = 124,056.30 × 51,211.40
  4. Step 4: Simplify right side
    82,704.20x = 6,353,096,801.82
  5. Step 5: Solve for x
    x = 6,353,096,801.82/82,704.20
  6. Step 6: Final answer
    x = 76,817.10

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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.