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Finding the Fourth Proportional to 79,277.34, 118,916.37 and 20,113.02

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Solution

The fourth proportional to 79,277.34, 118,916.37 and 20,113.02 is: 30,169.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,277.34 : 118,916.37 = 20,113.02 : x
  2. Step 2: Convert to fraction form
    79,277.34/118,916.37 = 20,113.02/x
  3. Step 3: Cross multiply
    79,277.34x = 118,916.37 × 20,113.02
  4. Step 4: Simplify right side
    79,277.34x = 2,391,767,328.14
  5. Step 5: Solve for x
    x = 2,391,767,328.14/79,277.34
  6. Step 6: Final answer
    x = 30,169.62

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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.