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Finding the Fourth Proportional to 57,488, 79,338 and 32,339.36

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Solution

The fourth proportional to 57,488, 79,338 and 32,339.36 is: 44,630.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,488 : 79,338 = 32,339.36 : x
  2. Step 2: Convert to fraction form
    57,488/79,338 = 32,339.36/x
  3. Step 3: Cross multiply
    57,488x = 79,338 × 32,339.36
  4. Step 4: Simplify right side
    57,488x = 2,565,740,143.68
  5. Step 5: Solve for x
    x = 2,565,740,143.68/57,488
  6. Step 6: Final answer
    x = 44,630.88

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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.