Home / 82,390.08-123,584.88-20,060.64

Finding the Fourth Proportional to 82,390.08, 123,584.88 and 20,060.64

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Solution

The fourth proportional to 82,390.08, 123,584.88 and 20,060.64 is: 30,090.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,390.08 : 123,584.88 = 20,060.64 : x
  2. Step 2: Convert to fraction form
    82,390.08/123,584.88 = 20,060.64/x
  3. Step 3: Cross multiply
    82,390.08x = 123,584.88 × 20,060.64
  4. Step 4: Simplify right side
    82,390.08x = 2,479,191,787.12
  5. Step 5: Solve for x
    x = 2,479,191,787.12/82,390.08
  6. Step 6: Final answer
    x = 30,090.90

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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.