Home / 57,620.48-79,516.28-31,124.48

Finding the Fourth Proportional to 57,620.48, 79,516.28 and 31,124.48

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Solution

The fourth proportional to 57,620.48, 79,516.28 and 31,124.48 is: 42,951.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,620.48 : 79,516.28 = 31,124.48 : x
  2. Step 2: Convert to fraction form
    57,620.48/79,516.28 = 31,124.48/x
  3. Step 3: Cross multiply
    57,620.48x = 79,516.28 × 31,124.48
  4. Step 4: Simplify right side
    57,620.48x = 2,474,902,866.53
  5. Step 5: Solve for x
    x = 2,474,902,866.53/57,620.48
  6. Step 6: Final answer
    x = 42,951.79

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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.