Home / 45,825.40-68,735.56-12,543.09

Finding the Fourth Proportional to 45,825.40, 68,735.56 and 12,543.09

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Solution

The fourth proportional to 45,825.40, 68,735.56 and 12,543.09 is: 18,813.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,825.40 : 68,735.56 = 12,543.09 : x
  2. Step 2: Convert to fraction form
    45,825.40/68,735.56 = 12,543.09/x
  3. Step 3: Cross multiply
    45,825.40x = 68,735.56 × 12,543.09
  4. Step 4: Simplify right side
    45,825.40x = 862,156,315.28
  5. Step 5: Solve for x
    x = 862,156,315.28/45,825.40
  6. Step 6: Final answer
    x = 18,813.94

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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.