Home / 57,381.06-79,180.82-31,885.80

Finding the Fourth Proportional to 57,381.06, 79,180.82 and 31,885.80

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Solution

The fourth proportional to 57,381.06, 79,180.82 and 31,885.80 is: 43,999.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,381.06 : 79,180.82 = 31,885.80 : x
  2. Step 2: Convert to fraction form
    57,381.06/79,180.82 = 31,885.80/x
  3. Step 3: Cross multiply
    57,381.06x = 79,180.82 × 31,885.80
  4. Step 4: Simplify right side
    57,381.06x = 2,524,743,809.28
  5. Step 5: Solve for x
    x = 2,524,743,809.28/57,381.06
  6. Step 6: Final answer
    x = 43,999.60

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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.