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Finding the Fourth Proportional to 79,426, 119,113.75 and 26,105.68

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Solution

The fourth proportional to 79,426, 119,113.75 and 26,105.68 is: 39,150.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,426 : 119,113.75 = 26,105.68 : x
  2. Step 2: Convert to fraction form
    79,426/119,113.75 = 26,105.68/x
  3. Step 3: Cross multiply
    79,426x = 119,113.75 × 26,105.68
  4. Step 4: Simplify right side
    79,426x = 3,109,545,441.10
  5. Step 5: Solve for x
    x = 3,109,545,441.10/79,426
  6. Step 6: Final answer
    x = 39,150.22

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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.