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Finding the Fourth Proportional to 79,301.80, 118,923.90 and 39,845.80

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Solution

The fourth proportional to 79,301.80, 118,923.90 and 39,845.80 is: 59,754.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,301.80 : 118,923.90 = 39,845.80 : x
  2. Step 2: Convert to fraction form
    79,301.80/118,923.90 = 39,845.80/x
  3. Step 3: Cross multiply
    79,301.80x = 118,923.90 × 39,845.80
  4. Step 4: Simplify right side
    79,301.80x = 4,738,617,934.62
  5. Step 5: Solve for x
    x = 4,738,617,934.62/79,301.80
  6. Step 6: Final answer
    x = 59,754.23

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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.