Home / 82,206.80-123,310.20-47,117.60

Finding the Fourth Proportional to 82,206.80, 123,310.20 and 47,117.60

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Solution

The fourth proportional to 82,206.80, 123,310.20 and 47,117.60 is: 70,676.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,206.80 : 123,310.20 = 47,117.60 : x
  2. Step 2: Convert to fraction form
    82,206.80/123,310.20 = 47,117.60/x
  3. Step 3: Cross multiply
    82,206.80x = 123,310.20 × 47,117.60
  4. Step 4: Simplify right side
    82,206.80x = 5,810,080,679.52
  5. Step 5: Solve for x
    x = 5,810,080,679.52/82,206.80
  6. Step 6: Final answer
    x = 70,676.40

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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.