Home / 42,107.42-63,161.13-12,525.68

Finding the Fourth Proportional to 42,107.42, 63,161.13 and 12,525.68

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Solution

The fourth proportional to 42,107.42, 63,161.13 and 12,525.68 is: 18,788.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,107.42 : 63,161.13 = 12,525.68 : x
  2. Step 2: Convert to fraction form
    42,107.42/63,161.13 = 12,525.68/x
  3. Step 3: Cross multiply
    42,107.42x = 63,161.13 × 12,525.68
  4. Step 4: Simplify right side
    42,107.42x = 791,136,102.82
  5. Step 5: Solve for x
    x = 791,136,102.82/42,107.42
  6. Step 6: Final answer
    x = 18,788.52

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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.