Home / 57,004.06-78,664.06-31,161.58

Finding the Fourth Proportional to 57,004.06, 78,664.06 and 31,161.58

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Solution

The fourth proportional to 57,004.06, 78,664.06 and 31,161.58 is: 43,002.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,004.06 : 78,664.06 = 31,161.58 : x
  2. Step 2: Convert to fraction form
    57,004.06/78,664.06 = 31,161.58/x
  3. Step 3: Cross multiply
    57,004.06x = 78,664.06 × 31,161.58
  4. Step 4: Simplify right side
    57,004.06x = 2,451,296,398.81
  5. Step 5: Solve for x
    x = 2,451,296,398.81/57,004.06
  6. Step 6: Final answer
    x = 43,002.14

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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.