Home / 57,127.60-78,835.11-31,633.42

Finding the Fourth Proportional to 57,127.60, 78,835.11 and 31,633.42

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Solution

The fourth proportional to 57,127.60, 78,835.11 and 31,633.42 is: 43,653.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,127.60 : 78,835.11 = 31,633.42 : x
  2. Step 2: Convert to fraction form
    57,127.60/78,835.11 = 31,633.42/x
  3. Step 3: Cross multiply
    57,127.60x = 78,835.11 × 31,633.42
  4. Step 4: Simplify right side
    57,127.60x = 2,493,823,948.29
  5. Step 5: Solve for x
    x = 2,493,823,948.29/57,127.60
  6. Step 6: Final answer
    x = 43,653.58

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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.