Home / 55,845.90-83,729.96-20,776.14

Finding the Fourth Proportional to 55,845.90, 83,729.96 and 20,776.14

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Solution

The fourth proportional to 55,845.90, 83,729.96 and 20,776.14 is: 31,149.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,845.90 : 83,729.96 = 20,776.14 : x
  2. Step 2: Convert to fraction form
    55,845.90/83,729.96 = 20,776.14/x
  3. Step 3: Cross multiply
    55,845.90x = 83,729.96 × 20,776.14
  4. Step 4: Simplify right side
    55,845.90x = 1,739,585,371.15
  5. Step 5: Solve for x
    x = 1,739,585,371.15/55,845.90
  6. Step 6: Final answer
    x = 31,149.74

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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.