Home / 63,905.40-95,858.10-40,285.80

Finding the Fourth Proportional to 63,905.40, 95,858.10 and 40,285.80

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Solution

The fourth proportional to 63,905.40, 95,858.10 and 40,285.80 is: 60,428.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,905.40 : 95,858.10 = 40,285.80 : x
  2. Step 2: Convert to fraction form
    63,905.40/95,858.10 = 40,285.80/x
  3. Step 3: Cross multiply
    63,905.40x = 95,858.10 × 40,285.80
  4. Step 4: Simplify right side
    63,905.40x = 3,861,720,244.98
  5. Step 5: Solve for x
    x = 3,861,720,244.98/63,905.40
  6. Step 6: Final answer
    x = 60,428.70

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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.