Home / 57,305.13-79,079.82-31,810.01

Finding the Fourth Proportional to 57,305.13, 79,079.82 and 31,810.01

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Solution

The fourth proportional to 57,305.13, 79,079.82 and 31,810.01 is: 43,897.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,305.13 : 79,079.82 = 31,810.01 : x
  2. Step 2: Convert to fraction form
    57,305.13/79,079.82 = 31,810.01/x
  3. Step 3: Cross multiply
    57,305.13x = 79,079.82 × 31,810.01
  4. Step 4: Simplify right side
    57,305.13x = 2,515,529,469.60
  5. Step 5: Solve for x
    x = 2,515,529,469.60/57,305.13
  6. Step 6: Final answer
    x = 43,897.11

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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.