Home / 42,107.50-63,164.90-10,942.75

Finding the Fourth Proportional to 42,107.50, 63,164.90 and 10,942.75

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Solution

The fourth proportional to 42,107.50, 63,164.90 and 10,942.75 is: 16,415.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,107.50 : 63,164.90 = 10,942.75 : x
  2. Step 2: Convert to fraction form
    42,107.50/63,164.90 = 10,942.75/x
  3. Step 3: Cross multiply
    42,107.50x = 63,164.90 × 10,942.75
  4. Step 4: Simplify right side
    42,107.50x = 691,197,709.48
  5. Step 5: Solve for x
    x = 691,197,709.48/42,107.50
  6. Step 6: Final answer
    x = 16,415.07

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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.