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Finding the Fourth Proportional to 79,363.90, 119,044.31 and 19,392.77

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Solution

The fourth proportional to 79,363.90, 119,044.31 and 19,392.77 is: 29,088.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,363.90 : 119,044.31 = 19,392.77 : x
  2. Step 2: Convert to fraction form
    79,363.90/119,044.31 = 19,392.77/x
  3. Step 3: Cross multiply
    79,363.90x = 119,044.31 × 19,392.77
  4. Step 4: Simplify right side
    79,363.90x = 2,308,599,124.29
  5. Step 5: Solve for x
    x = 2,308,599,124.29/79,363.90
  6. Step 6: Final answer
    x = 29,088.78

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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.