Home / 55,790.23-83,685.78-20,729.89

Finding the Fourth Proportional to 55,790.23, 83,685.78 and 20,729.89

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Solution

The fourth proportional to 55,790.23, 83,685.78 and 20,729.89 is: 31,095.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,790.23 : 83,685.78 = 20,729.89 : x
  2. Step 2: Convert to fraction form
    55,790.23/83,685.78 = 20,729.89/x
  3. Step 3: Cross multiply
    55,790.23x = 83,685.78 × 20,729.89
  4. Step 4: Simplify right side
    55,790.23x = 1,734,797,013.96
  5. Step 5: Solve for x
    x = 1,734,797,013.96/55,790.23
  6. Step 6: Final answer
    x = 31,095.00

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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.