Home / 82,090.24-123,135.36-19,760.74

Finding the Fourth Proportional to 82,090.24, 123,135.36 and 19,760.74

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Solution

The fourth proportional to 82,090.24, 123,135.36 and 19,760.74 is: 29,641.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,090.24 : 123,135.36 = 19,760.74 : x
  2. Step 2: Convert to fraction form
    82,090.24/123,135.36 = 19,760.74/x
  3. Step 3: Cross multiply
    82,090.24x = 123,135.36 × 19,760.74
  4. Step 4: Simplify right side
    82,090.24x = 2,433,245,833.77
  5. Step 5: Solve for x
    x = 2,433,245,833.77/82,090.24
  6. Step 6: Final answer
    x = 29,641.11

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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.