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Finding the Fourth Proportional to 79,458.52, 119,162.46 and 26,138.32

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Solution

The fourth proportional to 79,458.52, 119,162.46 and 26,138.32 is: 39,199.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,458.52 : 119,162.46 = 26,138.32 : x
  2. Step 2: Convert to fraction form
    79,458.52/119,162.46 = 26,138.32/x
  3. Step 3: Cross multiply
    79,458.52x = 119,162.46 × 26,138.32
  4. Step 4: Simplify right side
    79,458.52x = 3,114,706,511.47
  5. Step 5: Solve for x
    x = 3,114,706,511.47/79,458.52
  6. Step 6: Final answer
    x = 39,199.15

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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.