Home / 76,752.12-114,915.60-39,231.42

Finding the Fourth Proportional to 76,752.12, 114,915.60 and 39,231.42

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Solution

The fourth proportional to 76,752.12, 114,915.60 and 39,231.42 is: 58,738.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,752.12 : 114,915.60 = 39,231.42 : x
  2. Step 2: Convert to fraction form
    76,752.12/114,915.60 = 39,231.42/x
  3. Step 3: Cross multiply
    76,752.12x = 114,915.60 × 39,231.42
  4. Step 4: Simplify right side
    76,752.12x = 4,508,302,168.15
  5. Step 5: Solve for x
    x = 4,508,302,168.15/76,752.12
  6. Step 6: Final answer
    x = 58,738.47

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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.