Home / 55,731.12-83,597.96-13,611.54

Finding the Fourth Proportional to 55,731.12, 83,597.96 and 13,611.54

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Solution

The fourth proportional to 55,731.12, 83,597.96 and 13,611.54 is: 20,417.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,731.12 : 83,597.96 = 13,611.54 : x
  2. Step 2: Convert to fraction form
    55,731.12/83,597.96 = 13,611.54/x
  3. Step 3: Cross multiply
    55,731.12x = 83,597.96 × 13,611.54
  4. Step 4: Simplify right side
    55,731.12x = 1,137,897,221.89
  5. Step 5: Solve for x
    x = 1,137,897,221.89/55,731.12
  6. Step 6: Final answer
    x = 20,417.63

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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.