Home / 56,491.83-84,748.68-21,456.09

Finding the Fourth Proportional to 56,491.83, 84,748.68 and 21,456.09

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Solution

The fourth proportional to 56,491.83, 84,748.68 and 21,456.09 is: 32,188.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,491.83 : 84,748.68 = 21,456.09 : x
  2. Step 2: Convert to fraction form
    56,491.83/84,748.68 = 21,456.09/x
  3. Step 3: Cross multiply
    56,491.83x = 84,748.68 × 21,456.09
  4. Step 4: Simplify right side
    56,491.83x = 1,818,375,305.46
  5. Step 5: Solve for x
    x = 1,818,375,305.46/56,491.83
  6. Step 6: Final answer
    x = 32,188.29

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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.