Home / 56,729.06-85,082.61-21,660.38

Finding the Fourth Proportional to 56,729.06, 85,082.61 and 21,660.38

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Solution

The fourth proportional to 56,729.06, 85,082.61 and 21,660.38 is: 32,486.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,729.06 : 85,082.61 = 21,660.38 : x
  2. Step 2: Convert to fraction form
    56,729.06/85,082.61 = 21,660.38/x
  3. Step 3: Cross multiply
    56,729.06x = 85,082.61 × 21,660.38
  4. Step 4: Simplify right side
    56,729.06x = 1,842,921,663.99
  5. Step 5: Solve for x
    x = 1,842,921,663.99/56,729.06
  6. Step 6: Final answer
    x = 32,486.38

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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.