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Finding the Fourth Proportional to 79,193.57, 109,259.78 and 45,177.50

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Solution

The fourth proportional to 79,193.57, 109,259.78 and 45,177.50 is: 62,329.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,193.57 : 109,259.78 = 45,177.50 : x
  2. Step 2: Convert to fraction form
    79,193.57/109,259.78 = 45,177.50/x
  3. Step 3: Cross multiply
    79,193.57x = 109,259.78 × 45,177.50
  4. Step 4: Simplify right side
    79,193.57x = 4,936,083,758.21
  5. Step 5: Solve for x
    x = 4,936,083,758.21/79,193.57
  6. Step 6: Final answer
    x = 62,329.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.