Home / 47,170.84-65,122.62-31,276.78

Finding the Fourth Proportional to 47,170.84, 65,122.62 and 31,276.78

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Solution

The fourth proportional to 47,170.84, 65,122.62 and 31,276.78 is: 43,179.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,170.84 : 65,122.62 = 31,276.78 : x
  2. Step 2: Convert to fraction form
    47,170.84/65,122.62 = 31,276.78/x
  3. Step 3: Cross multiply
    47,170.84x = 65,122.62 × 31,276.78
  4. Step 4: Simplify right side
    47,170.84x = 2,036,825,858.76
  5. Step 5: Solve for x
    x = 2,036,825,858.76/47,170.84
  6. Step 6: Final answer
    x = 43,179.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.