Home / 82,426.95-123,640.11-29,840.49

Finding the Fourth Proportional to 82,426.95, 123,640.11 and 29,840.49

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Solution

The fourth proportional to 82,426.95, 123,640.11 and 29,840.49 is: 44,760.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,426.95 : 123,640.11 = 29,840.49 : x
  2. Step 2: Convert to fraction form
    82,426.95/123,640.11 = 29,840.49/x
  3. Step 3: Cross multiply
    82,426.95x = 123,640.11 × 29,840.49
  4. Step 4: Simplify right side
    82,426.95x = 3,689,481,466.05
  5. Step 5: Solve for x
    x = 3,689,481,466.05/82,426.95
  6. Step 6: Final answer
    x = 44,760.62

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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.