Home / 51,805.18-71,489.55-29,145.43

Finding the Fourth Proportional to 51,805.18, 71,489.55 and 29,145.43

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Solution

The fourth proportional to 51,805.18, 71,489.55 and 29,145.43 is: 40,219.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,805.18 : 71,489.55 = 29,145.43 : x
  2. Step 2: Convert to fraction form
    51,805.18/71,489.55 = 29,145.43/x
  3. Step 3: Cross multiply
    51,805.18x = 71,489.55 × 29,145.43
  4. Step 4: Simplify right side
    51,805.18x = 2,083,593,675.26
  5. Step 5: Solve for x
    x = 2,083,593,675.26/51,805.18
  6. Step 6: Final answer
    x = 40,219.79

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1.5x scale

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.