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Finding the Fourth Proportional to 79,309.45, 118,963.14 and 19,338.22

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Solution

The fourth proportional to 79,309.45, 118,963.14 and 19,338.22 is: 29,007.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,309.45 : 118,963.14 = 19,338.22 : x
  2. Step 2: Convert to fraction form
    79,309.45/118,963.14 = 19,338.22/x
  3. Step 3: Cross multiply
    79,309.45x = 118,963.14 × 19,338.22
  4. Step 4: Simplify right side
    79,309.45x = 2,300,535,373.21
  5. Step 5: Solve for x
    x = 2,300,535,373.21/79,309.45
  6. Step 6: Final answer
    x = 29,007.08

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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.