Home / 57,001.80-78,659.77-31,161.69

Finding the Fourth Proportional to 57,001.80, 78,659.77 and 31,161.69

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Solution

The fourth proportional to 57,001.80, 78,659.77 and 31,161.69 is: 43,001.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,001.80 : 78,659.77 = 31,161.69 : x
  2. Step 2: Convert to fraction form
    57,001.80/78,659.77 = 31,161.69/x
  3. Step 3: Cross multiply
    57,001.80x = 78,659.77 × 31,161.69
  4. Step 4: Simplify right side
    57,001.80x = 2,451,171,147.45
  5. Step 5: Solve for x
    x = 2,451,171,147.45/57,001.80
  6. Step 6: Final answer
    x = 43,001.64

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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.