Home / 57,369.64-79,171.12-31,878.36

Finding the Fourth Proportional to 57,369.64, 79,171.12 and 31,878.36

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Solution

The fourth proportional to 57,369.64, 79,171.12 and 31,878.36 is: 43,992.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,369.64 : 79,171.12 = 31,878.36 : x
  2. Step 2: Convert to fraction form
    57,369.64/79,171.12 = 31,878.36/x
  3. Step 3: Cross multiply
    57,369.64x = 79,171.12 × 31,878.36
  4. Step 4: Simplify right side
    57,369.64x = 2,523,845,464.96
  5. Step 5: Solve for x
    x = 2,523,845,464.96/57,369.64
  6. Step 6: Final answer
    x = 43,992.70

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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.