Home / 57,023.63-78,691.22-31,529.35

Finding the Fourth Proportional to 57,023.63, 78,691.22 and 31,529.35

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Solution

The fourth proportional to 57,023.63, 78,691.22 and 31,529.35 is: 43,509.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,023.63 : 78,691.22 = 31,529.35 : x
  2. Step 2: Convert to fraction form
    57,023.63/78,691.22 = 31,529.35/x
  3. Step 3: Cross multiply
    57,023.63x = 78,691.22 × 31,529.35
  4. Step 4: Simplify right side
    57,023.63x = 2,481,083,017.31
  5. Step 5: Solve for x
    x = 2,481,083,017.31/57,023.63
  6. Step 6: Final answer
    x = 43,509.73

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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.