Home / 76,748.17-115,134.56-32,381.46

Finding the Fourth Proportional to 76,748.17, 115,134.56 and 32,381.46

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Solution

The fourth proportional to 76,748.17, 115,134.56 and 32,381.46 is: 48,577.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,748.17 : 115,134.56 = 32,381.46 : x
  2. Step 2: Convert to fraction form
    76,748.17/115,134.56 = 32,381.46/x
  3. Step 3: Cross multiply
    76,748.17x = 115,134.56 × 32,381.46
  4. Step 4: Simplify right side
    76,748.17x = 3,728,224,924.10
  5. Step 5: Solve for x
    x = 3,728,224,924.10/76,748.17
  6. Step 6: Final answer
    x = 48,577.38

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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.