Home / 51,555.31-71,142.96-30,330.48

Finding the Fourth Proportional to 51,555.31, 71,142.96 and 30,330.48

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Solution

The fourth proportional to 51,555.31, 71,142.96 and 30,330.48 is: 41,854.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,555.31 : 71,142.96 = 30,330.48 : x
  2. Step 2: Convert to fraction form
    51,555.31/71,142.96 = 30,330.48/x
  3. Step 3: Cross multiply
    51,555.31x = 71,142.96 × 30,330.48
  4. Step 4: Simplify right side
    51,555.31x = 2,157,800,125.42
  5. Step 5: Solve for x
    x = 2,157,800,125.42/51,555.31
  6. Step 6: Final answer
    x = 41,854.08

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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.