Home / 57,938.31-79,954.87-31,442.31

Finding the Fourth Proportional to 57,938.31, 79,954.87 and 31,442.31

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Solution

The fourth proportional to 57,938.31, 79,954.87 and 31,442.31 is: 43,390.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,938.31 : 79,954.87 = 31,442.31 : x
  2. Step 2: Convert to fraction form
    57,938.31/79,954.87 = 31,442.31/x
  3. Step 3: Cross multiply
    57,938.31x = 79,954.87 × 31,442.31
  4. Step 4: Simplify right side
    57,938.31x = 2,513,965,808.55
  5. Step 5: Solve for x
    x = 2,513,965,808.55/57,938.31
  6. Step 6: Final answer
    x = 43,390.39

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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.