Home / 57,954.20-86,931.29-31,644.59

Finding the Fourth Proportional to 57,954.20, 86,931.29 and 31,644.59

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Solution

The fourth proportional to 57,954.20, 86,931.29 and 31,644.59 is: 47,466.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,954.20 : 86,931.29 = 31,644.59 : x
  2. Step 2: Convert to fraction form
    57,954.20/86,931.29 = 31,644.59/x
  3. Step 3: Cross multiply
    57,954.20x = 86,931.29 × 31,644.59
  4. Step 4: Simplify right side
    57,954.20x = 2,750,904,674.68
  5. Step 5: Solve for x
    x = 2,750,904,674.68/57,954.20
  6. Step 6: Final answer
    x = 47,466.88

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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.