Home / 40,215.72-60,322.07-12,135.04

Finding the Fourth Proportional to 40,215.72, 60,322.07 and 12,135.04

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Solution

The fourth proportional to 40,215.72, 60,322.07 and 12,135.04 is: 18,202.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,215.72 : 60,322.07 = 12,135.04 : x
  2. Step 2: Convert to fraction form
    40,215.72/60,322.07 = 12,135.04/x
  3. Step 3: Cross multiply
    40,215.72x = 60,322.07 × 12,135.04
  4. Step 4: Simplify right side
    40,215.72x = 732,010,611.87
  5. Step 5: Solve for x
    x = 732,010,611.87/40,215.72
  6. Step 6: Final answer
    x = 18,202.10

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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.