Home / 76,748.50-115,188.36-30,034.18

Finding the Fourth Proportional to 76,748.50, 115,188.36 and 30,034.18

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Solution

The fourth proportional to 76,748.50, 115,188.36 and 30,034.18 is: 45,076.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,748.50 : 115,188.36 = 30,034.18 : x
  2. Step 2: Convert to fraction form
    76,748.50/115,188.36 = 30,034.18/x
  3. Step 3: Cross multiply
    76,748.50x = 115,188.36 × 30,034.18
  4. Step 4: Simplify right side
    76,748.50x = 3,459,587,938.14
  5. Step 5: Solve for x
    x = 3,459,587,938.14/76,748.50
  6. Step 6: Final answer
    x = 45,076.95

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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.