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Finding the Fourth Proportional to 79,008.60, 118,512.90 and 49,459.80

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Solution

The fourth proportional to 79,008.60, 118,512.90 and 49,459.80 is: 74,189.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,008.60 : 118,512.90 = 49,459.80 : x
  2. Step 2: Convert to fraction form
    79,008.60/118,512.90 = 49,459.80/x
  3. Step 3: Cross multiply
    79,008.60x = 118,512.90 × 49,459.80
  4. Step 4: Simplify right side
    79,008.60x = 5,861,624,331.42
  5. Step 5: Solve for x
    x = 5,861,624,331.42/79,008.60
  6. Step 6: Final answer
    x = 74,189.70

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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.