Home / 40,056.64-60,042.56-13,395.90

Finding the Fourth Proportional to 40,056.64, 60,042.56 and 13,395.90

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Solution

The fourth proportional to 40,056.64, 60,042.56 and 13,395.90 is: 20,079.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,056.64 : 60,042.56 = 13,395.90 : x
  2. Step 2: Convert to fraction form
    40,056.64/60,042.56 = 13,395.90/x
  3. Step 3: Cross multiply
    40,056.64x = 60,042.56 × 13,395.90
  4. Step 4: Simplify right side
    40,056.64x = 804,324,129.50
  5. Step 5: Solve for x
    x = 804,324,129.50/40,056.64
  6. Step 6: Final answer
    x = 20,079.67

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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.