Home / 82,087.29-123,130.95-19,757.79

Finding the Fourth Proportional to 82,087.29, 123,130.95 and 19,757.79

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Solution

The fourth proportional to 82,087.29, 123,130.95 and 19,757.79 is: 29,636.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,087.29 : 123,130.95 = 19,757.79 : x
  2. Step 2: Convert to fraction form
    82,087.29/123,130.95 = 19,757.79/x
  3. Step 3: Cross multiply
    82,087.29x = 123,130.95 × 19,757.79
  4. Step 4: Simplify right side
    82,087.29x = 2,432,795,452.60
  5. Step 5: Solve for x
    x = 2,432,795,452.60/82,087.29
  6. Step 6: Final answer
    x = 29,636.69

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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.