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Finding the Fourth Proportional to 57,305.88, 79,080.06 and 31,813.35

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Solution

The fourth proportional to 57,305.88, 79,080.06 and 31,813.35 is: 43,901.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,305.88 : 79,080.06 = 31,813.35 : x
  2. Step 2: Convert to fraction form
    57,305.88/79,080.06 = 31,813.35/x
  3. Step 3: Cross multiply
    57,305.88x = 79,080.06 × 31,813.35
  4. Step 4: Simplify right side
    57,305.88x = 2,515,801,626.80
  5. Step 5: Solve for x
    x = 2,515,801,626.80/57,305.88
  6. Step 6: Final answer
    x = 43,901.28

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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.