Home / 82,446.53-123,670.10-20,117.03

Finding the Fourth Proportional to 82,446.53, 123,670.10 and 20,117.03

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Solution

The fourth proportional to 82,446.53, 123,670.10 and 20,117.03 is: 30,175.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,446.53 : 123,670.10 = 20,117.03 : x
  2. Step 2: Convert to fraction form
    82,446.53/123,670.10 = 20,117.03/x
  3. Step 3: Cross multiply
    82,446.53x = 123,670.10 × 20,117.03
  4. Step 4: Simplify right side
    82,446.53x = 2,487,875,011.22
  5. Step 5: Solve for x
    x = 2,487,875,011.22/82,446.53
  6. Step 6: Final answer
    x = 30,175.62

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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.