Home / 57,805.13-79,771.07-31,309.13

Finding the Fourth Proportional to 57,805.13, 79,771.07 and 31,309.13

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Solution

The fourth proportional to 57,805.13, 79,771.07 and 31,309.13 is: 43,206.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,805.13 : 79,771.07 = 31,309.13 : x
  2. Step 2: Convert to fraction form
    57,805.13/79,771.07 = 31,309.13/x
  3. Step 3: Cross multiply
    57,805.13x = 79,771.07 × 31,309.13
  4. Step 4: Simplify right side
    57,805.13x = 2,497,562,480.29
  5. Step 5: Solve for x
    x = 2,497,562,480.29/57,805.13
  6. Step 6: Final answer
    x = 43,206.59

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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.