Home / 82,446.03-123,669.35-20,116.53

Finding the Fourth Proportional to 82,446.03, 123,669.35 and 20,116.53

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Solution

The fourth proportional to 82,446.03, 123,669.35 and 20,116.53 is: 30,174.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,446.03 : 123,669.35 = 20,116.53 : x
  2. Step 2: Convert to fraction form
    82,446.03/123,669.35 = 20,116.53/x
  3. Step 3: Cross multiply
    82,446.03x = 123,669.35 × 20,116.53
  4. Step 4: Simplify right side
    82,446.03x = 2,487,798,088.77
  5. Step 5: Solve for x
    x = 2,487,798,088.77/82,446.03
  6. Step 6: Final answer
    x = 30,174.87

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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.