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Finding the Fourth Proportional to 57,254.42, 79,011.03 and 31,764.65

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Solution

The fourth proportional to 57,254.42, 79,011.03 and 31,764.65 is: 43,835.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,254.42 : 79,011.03 = 31,764.65 : x
  2. Step 2: Convert to fraction form
    57,254.42/79,011.03 = 31,764.65/x
  3. Step 3: Cross multiply
    57,254.42x = 79,011.03 × 31,764.65
  4. Step 4: Simplify right side
    57,254.42x = 2,509,757,714.09
  5. Step 5: Solve for x
    x = 2,509,757,714.09/57,254.42
  6. Step 6: Final answer
    x = 43,835.18

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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.