Home / 75,129.50-103,685.20-41,601.98

Finding the Fourth Proportional to 75,129.50, 103,685.20 and 41,601.98

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Solution

The fourth proportional to 75,129.50, 103,685.20 and 41,601.98 is: 57,414.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,129.50 : 103,685.20 = 41,601.98 : x
  2. Step 2: Convert to fraction form
    75,129.50/103,685.20 = 41,601.98/x
  3. Step 3: Cross multiply
    75,129.50x = 103,685.20 × 41,601.98
  4. Step 4: Simplify right side
    75,129.50x = 4,313,509,616.70
  5. Step 5: Solve for x
    x = 4,313,509,616.70/75,129.50
  6. Step 6: Final answer
    x = 57,414.33

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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.