Home / 72,917.52-109,367.05-28,575.41

Finding the Fourth Proportional to 72,917.52, 109,367.05 and 28,575.41

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Solution

The fourth proportional to 72,917.52, 109,367.05 and 28,575.41 is: 42,859.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,917.52 : 109,367.05 = 28,575.41 : x
  2. Step 2: Convert to fraction form
    72,917.52/109,367.05 = 28,575.41/x
  3. Step 3: Cross multiply
    72,917.52x = 109,367.05 × 28,575.41
  4. Step 4: Simplify right side
    72,917.52x = 3,125,208,425.10
  5. Step 5: Solve for x
    x = 3,125,208,425.10/72,917.52
  6. Step 6: Final answer
    x = 42,859.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.