Home / 40,763.28-61,145-11,181.52

Finding the Fourth Proportional to 40,763.28, 61,145 and 11,181.52

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Solution

The fourth proportional to 40,763.28, 61,145 and 11,181.52 is: 16,772.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,763.28 : 61,145 = 11,181.52 : x
  2. Step 2: Convert to fraction form
    40,763.28/61,145 = 11,181.52/x
  3. Step 3: Cross multiply
    40,763.28x = 61,145 × 11,181.52
  4. Step 4: Simplify right side
    40,763.28x = 683,694,040.40
  5. Step 5: Solve for x
    x = 683,694,040.40/40,763.28
  6. Step 6: Final answer
    x = 16,772.30

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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.