Home / 75,134.50-103,685.61-41,602.66

Finding the Fourth Proportional to 75,134.50, 103,685.61 and 41,602.66

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Solution

The fourth proportional to 75,134.50, 103,685.61 and 41,602.66 is: 57,411.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,134.50 : 103,685.61 = 41,602.66 : x
  2. Step 2: Convert to fraction form
    75,134.50/103,685.61 = 41,602.66/x
  3. Step 3: Cross multiply
    75,134.50x = 103,685.61 × 41,602.66
  4. Step 4: Simplify right side
    75,134.50x = 4,313,597,179.72
  5. Step 5: Solve for x
    x = 4,313,597,179.72/75,134.50
  6. Step 6: Final answer
    x = 57,411.67

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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.