Home / 56,914.92-85,381.64-21,379

Finding the Fourth Proportional to 56,914.92, 85,381.64 and 21,379

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Solution

The fourth proportional to 56,914.92, 85,381.64 and 21,379 is: 32,071.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,914.92 : 85,381.64 = 21,379 : x
  2. Step 2: Convert to fraction form
    56,914.92/85,381.64 = 21,379/x
  3. Step 3: Cross multiply
    56,914.92x = 85,381.64 × 21,379
  4. Step 4: Simplify right side
    56,914.92x = 1,825,374,081.56
  5. Step 5: Solve for x
    x = 1,825,374,081.56/56,914.92
  6. Step 6: Final answer
    x = 32,071.98

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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.