Home / 40,202.64-60,312.51-12,124.80

Finding the Fourth Proportional to 40,202.64, 60,312.51 and 12,124.80

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Solution

The fourth proportional to 40,202.64, 60,312.51 and 12,124.80 is: 18,189.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,202.64 : 60,312.51 = 12,124.80 : x
  2. Step 2: Convert to fraction form
    40,202.64/60,312.51 = 12,124.80/x
  3. Step 3: Cross multiply
    40,202.64x = 60,312.51 × 12,124.80
  4. Step 4: Simplify right side
    40,202.64x = 731,277,121.25
  5. Step 5: Solve for x
    x = 731,277,121.25/40,202.64
  6. Step 6: Final answer
    x = 18,189.78

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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.