Home / 56,816.38-85,212.33-21,276.28

Finding the Fourth Proportional to 56,816.38, 85,212.33 and 21,276.28

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Solution

The fourth proportional to 56,816.38, 85,212.33 and 21,276.28 is: 31,909.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,816.38 : 85,212.33 = 21,276.28 : x
  2. Step 2: Convert to fraction form
    56,816.38/85,212.33 = 21,276.28/x
  3. Step 3: Cross multiply
    56,816.38x = 85,212.33 × 21,276.28
  4. Step 4: Simplify right side
    56,816.38x = 1,813,001,392.53
  5. Step 5: Solve for x
    x = 1,813,001,392.53/56,816.38
  6. Step 6: Final answer
    x = 31,909.84

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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.