Home / 55,517.03-76,620.80-31,638.23

Finding the Fourth Proportional to 55,517.03, 76,620.80 and 31,638.23

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Solution

The fourth proportional to 55,517.03, 76,620.80 and 31,638.23 is: 43,664.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,517.03 : 76,620.80 = 31,638.23 : x
  2. Step 2: Convert to fraction form
    55,517.03/76,620.80 = 31,638.23/x
  3. Step 3: Cross multiply
    55,517.03x = 76,620.80 × 31,638.23
  4. Step 4: Simplify right side
    55,517.03x = 2,424,146,493.18
  5. Step 5: Solve for x
    x = 2,424,146,493.18/55,517.03
  6. Step 6: Final answer
    x = 43,664.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.