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Finding the Fourth Proportional to 79,520.76, 119,308.68 and 40,045.68

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Solution

The fourth proportional to 79,520.76, 119,308.68 and 40,045.68 is: 60,082.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,520.76 : 119,308.68 = 40,045.68 : x
  2. Step 2: Convert to fraction form
    79,520.76/119,308.68 = 40,045.68/x
  3. Step 3: Cross multiply
    79,520.76x = 119,308.68 × 40,045.68
  4. Step 4: Simplify right side
    79,520.76x = 4,777,797,220.50
  5. Step 5: Solve for x
    x = 4,777,797,220.50/79,520.76
  6. Step 6: Final answer
    x = 60,082.39

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1.5x scale

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.