Home / 57,275.37-79,040.43-31,781.84

Finding the Fourth Proportional to 57,275.37, 79,040.43 and 31,781.84

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Solution

The fourth proportional to 57,275.37, 79,040.43 and 31,781.84 is: 43,859.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,275.37 : 79,040.43 = 31,781.84 : x
  2. Step 2: Convert to fraction form
    57,275.37/79,040.43 = 31,781.84/x
  3. Step 3: Cross multiply
    57,275.37x = 79,040.43 × 31,781.84
  4. Step 4: Simplify right side
    57,275.37x = 2,512,049,904.59
  5. Step 5: Solve for x
    x = 2,512,049,904.59/57,275.37
  6. Step 6: Final answer
    x = 43,859.17

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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.