Home / 40,111.38-60,170.30-12,409.38

Finding the Fourth Proportional to 40,111.38, 60,170.30 and 12,409.38

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Solution

The fourth proportional to 40,111.38, 60,170.30 and 12,409.38 is: 18,615.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,111.38 : 60,170.30 = 12,409.38 : x
  2. Step 2: Convert to fraction form
    40,111.38/60,170.30 = 12,409.38/x
  3. Step 3: Cross multiply
    40,111.38x = 60,170.30 × 12,409.38
  4. Step 4: Simplify right side
    40,111.38x = 746,676,117.41
  5. Step 5: Solve for x
    x = 746,676,117.41/40,111.38
  6. Step 6: Final answer
    x = 18,615.07

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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.