Home / 45,340.32-68,028.48-20,373.60

Finding the Fourth Proportional to 45,340.32, 68,028.48 and 20,373.60

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Solution

The fourth proportional to 45,340.32, 68,028.48 and 20,373.60 is: 30,568.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,340.32 : 68,028.48 = 20,373.60 : x
  2. Step 2: Convert to fraction form
    45,340.32/68,028.48 = 20,373.60/x
  3. Step 3: Cross multiply
    45,340.32x = 68,028.48 × 20,373.60
  4. Step 4: Simplify right side
    45,340.32x = 1,385,985,040.13
  5. Step 5: Solve for x
    x = 1,385,985,040.13/45,340.32
  6. Step 6: Final answer
    x = 30,568.49

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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.