Home / 42,107.96-63,161.36-12,122.92

Finding the Fourth Proportional to 42,107.96, 63,161.36 and 12,122.92

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Solution

The fourth proportional to 42,107.96, 63,161.36 and 12,122.92 is: 18,184.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,107.96 : 63,161.36 = 12,122.92 : x
  2. Step 2: Convert to fraction form
    42,107.96/63,161.36 = 12,122.92/x
  3. Step 3: Cross multiply
    42,107.96x = 63,161.36 × 12,122.92
  4. Step 4: Simplify right side
    42,107.96x = 765,700,114.37
  5. Step 5: Solve for x
    x = 765,700,114.37/42,107.96
  6. Step 6: Final answer
    x = 18,184.21

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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.