Home / 57,477.05-79,318.38-31,985.73

Finding the Fourth Proportional to 57,477.05, 79,318.38 and 31,985.73

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Solution

The fourth proportional to 57,477.05, 79,318.38 and 31,985.73 is: 44,140.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,477.05 : 79,318.38 = 31,985.73 : x
  2. Step 2: Convert to fraction form
    57,477.05/79,318.38 = 31,985.73/x
  3. Step 3: Cross multiply
    57,477.05x = 79,318.38 × 31,985.73
  4. Step 4: Simplify right side
    57,477.05x = 2,537,056,286.72
  5. Step 5: Solve for x
    x = 2,537,056,286.72/57,477.05
  6. Step 6: Final answer
    x = 44,140.34

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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.