Home / 82,320.06-123,480.09-29,728.38

Finding the Fourth Proportional to 82,320.06, 123,480.09 and 29,728.38

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Solution

The fourth proportional to 82,320.06, 123,480.09 and 29,728.38 is: 44,592.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,320.06 : 123,480.09 = 29,728.38 : x
  2. Step 2: Convert to fraction form
    82,320.06/123,480.09 = 29,728.38/x
  3. Step 3: Cross multiply
    82,320.06x = 123,480.09 × 29,728.38
  4. Step 4: Simplify right side
    82,320.06x = 3,670,863,037.95
  5. Step 5: Solve for x
    x = 3,670,863,037.95/82,320.06
  6. Step 6: Final answer
    x = 44,592.57

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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.