Home / 82,328.04-123,492.06-19,998.12

Finding the Fourth Proportional to 82,328.04, 123,492.06 and 19,998.12

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Solution

The fourth proportional to 82,328.04, 123,492.06 and 19,998.12 is: 29,997.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,328.04 : 123,492.06 = 19,998.12 : x
  2. Step 2: Convert to fraction form
    82,328.04/123,492.06 = 19,998.12/x
  3. Step 3: Cross multiply
    82,328.04x = 123,492.06 × 19,998.12
  4. Step 4: Simplify right side
    82,328.04x = 2,469,609,034.93
  5. Step 5: Solve for x
    x = 2,469,609,034.93/82,328.04
  6. Step 6: Final answer
    x = 29,997.18

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Double scale
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Similar ratio
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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.