Home / 36,071.91-54,090.03-21,082.81

Finding the Fourth Proportional to 36,071.91, 54,090.03 and 21,082.81

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Solution

The fourth proportional to 36,071.91, 54,090.03 and 21,082.81 is: 31,613.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,071.91 : 54,090.03 = 21,082.81 : x
  2. Step 2: Convert to fraction form
    36,071.91/54,090.03 = 21,082.81/x
  3. Step 3: Cross multiply
    36,071.91x = 54,090.03 × 21,082.81
  4. Step 4: Simplify right side
    36,071.91x = 1,140,369,825.38
  5. Step 5: Solve for x
    x = 1,140,369,825.38/36,071.91
  6. Step 6: Final answer
    x = 31,613.79

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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.