Home / 43,915.14-65,874.51-12,750.39

Finding the Fourth Proportional to 43,915.14, 65,874.51 and 12,750.39

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Solution

The fourth proportional to 43,915.14, 65,874.51 and 12,750.39 is: 19,126.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,915.14 : 65,874.51 = 12,750.39 : x
  2. Step 2: Convert to fraction form
    43,915.14/65,874.51 = 12,750.39/x
  3. Step 3: Cross multiply
    43,915.14x = 65,874.51 × 12,750.39
  4. Step 4: Simplify right side
    43,915.14x = 839,925,693.56
  5. Step 5: Solve for x
    x = 839,925,693.56/43,915.14
  6. Step 6: Final answer
    x = 19,126.11

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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.