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Finding the Fourth Proportional to 79,080.60, 118,620.90 and 49,531.80

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Solution

The fourth proportional to 79,080.60, 118,620.90 and 49,531.80 is: 74,297.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,080.60 : 118,620.90 = 49,531.80 : x
  2. Step 2: Convert to fraction form
    79,080.60/118,620.90 = 49,531.80/x
  3. Step 3: Cross multiply
    79,080.60x = 118,620.90 × 49,531.80
  4. Step 4: Simplify right side
    79,080.60x = 5,875,506,694.62
  5. Step 5: Solve for x
    x = 5,875,506,694.62/79,080.60
  6. Step 6: Final answer
    x = 74,297.70

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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.