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Finding the Fourth Proportional to 57,304.76, 79,079.31 and 31,809.63

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Solution

The fourth proportional to 57,304.76, 79,079.31 and 31,809.63 is: 43,896.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,304.76 : 79,079.31 = 31,809.63 : x
  2. Step 2: Convert to fraction form
    57,304.76/79,079.31 = 31,809.63/x
  3. Step 3: Cross multiply
    57,304.76x = 79,079.31 × 31,809.63
  4. Step 4: Simplify right side
    57,304.76x = 2,515,483,591.76
  5. Step 5: Solve for x
    x = 2,515,483,591.76/57,304.76
  6. Step 6: Final answer
    x = 43,896.59

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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.