Home / 76,972.68-115,378.83-37,475.46

Finding the Fourth Proportional to 76,972.68, 115,378.83 and 37,475.46

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Solution

The fourth proportional to 76,972.68, 115,378.83 and 37,475.46 is: 56,174.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,972.68 : 115,378.83 = 37,475.46 : x
  2. Step 2: Convert to fraction form
    76,972.68/115,378.83 = 37,475.46/x
  3. Step 3: Cross multiply
    76,972.68x = 115,378.83 × 37,475.46
  4. Step 4: Simplify right side
    76,972.68x = 4,323,874,728.51
  5. Step 5: Solve for x
    x = 4,323,874,728.51/76,972.68
  6. Step 6: Final answer
    x = 56,174.15

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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.