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Finding the Fourth Proportional to 79,006.60, 118,337.10 and 61,337.80

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Solution

The fourth proportional to 79,006.60, 118,337.10 and 61,337.80 is: 91,872.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,006.60 : 118,337.10 = 61,337.80 : x
  2. Step 2: Convert to fraction form
    79,006.60/118,337.10 = 61,337.80/x
  3. Step 3: Cross multiply
    79,006.60x = 118,337.10 × 61,337.80
  4. Step 4: Simplify right side
    79,006.60x = 7,258,537,372.38
  5. Step 5: Solve for x
    x = 7,258,537,372.38/79,006.60
  6. Step 6: Final answer
    x = 91,872.54

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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.