Home / 55,731.90-83,599.13-13,612.33

Finding the Fourth Proportional to 55,731.90, 83,599.13 and 13,612.33

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Solution

The fourth proportional to 55,731.90, 83,599.13 and 13,612.33 is: 20,418.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,731.90 : 83,599.13 = 13,612.33 : x
  2. Step 2: Convert to fraction form
    55,731.90/83,599.13 = 13,612.33/x
  3. Step 3: Cross multiply
    55,731.90x = 83,599.13 × 13,612.33
  4. Step 4: Simplify right side
    55,731.90x = 1,137,978,702.24
  5. Step 5: Solve for x
    x = 1,137,978,702.24/55,731.90
  6. Step 6: Final answer
    x = 20,418.81

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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.