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Finding the Fourth Proportional to 79,350.80, 118,795.80 and 77,046.80

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Solution

The fourth proportional to 79,350.80, 118,795.80 and 77,046.80 is: 115,346.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,350.80 : 118,795.80 = 77,046.80 : x
  2. Step 2: Convert to fraction form
    79,350.80/118,795.80 = 77,046.80/x
  3. Step 3: Cross multiply
    79,350.80x = 118,795.80 × 77,046.80
  4. Step 4: Simplify right side
    79,350.80x = 9,152,836,243.44
  5. Step 5: Solve for x
    x = 9,152,836,243.44/79,350.80
  6. Step 6: Final answer
    x = 115,346.49

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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.