Home / 56,288.49-84,409.37-20,751.83

Finding the Fourth Proportional to 56,288.49, 84,409.37 and 20,751.83

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Solution

The fourth proportional to 56,288.49, 84,409.37 and 20,751.83 is: 31,119.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,288.49 : 84,409.37 = 20,751.83 : x
  2. Step 2: Convert to fraction form
    56,288.49/84,409.37 = 20,751.83/x
  3. Step 3: Cross multiply
    56,288.49x = 84,409.37 × 20,751.83
  4. Step 4: Simplify right side
    56,288.49x = 1,751,648,685.62
  5. Step 5: Solve for x
    x = 1,751,648,685.62/56,288.49
  6. Step 6: Final answer
    x = 31,119.13

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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.