Home / 51,489.64-71,047.45-28,829.58

Finding the Fourth Proportional to 51,489.64, 71,047.45 and 28,829.58

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Solution

The fourth proportional to 51,489.64, 71,047.45 and 28,829.58 is: 39,780.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,489.64 : 71,047.45 = 28,829.58 : x
  2. Step 2: Convert to fraction form
    51,489.64/71,047.45 = 28,829.58/x
  3. Step 3: Cross multiply
    51,489.64x = 71,047.45 × 28,829.58
  4. Step 4: Simplify right side
    51,489.64x = 2,048,268,143.57
  5. Step 5: Solve for x
    x = 2,048,268,143.57/51,489.64
  6. Step 6: Final answer
    x = 39,780.20

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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.