Home / 53,965.71-80,902.40-20,709.64

Finding the Fourth Proportional to 53,965.71, 80,902.40 and 20,709.64

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Solution

The fourth proportional to 53,965.71, 80,902.40 and 20,709.64 is: 31,046.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,965.71 : 80,902.40 = 20,709.64 : x
  2. Step 2: Convert to fraction form
    53,965.71/80,902.40 = 20,709.64/x
  3. Step 3: Cross multiply
    53,965.71x = 80,902.40 × 20,709.64
  4. Step 4: Simplify right side
    53,965.71x = 1,675,459,576.72
  5. Step 5: Solve for x
    x = 1,675,459,576.72/53,965.71
  6. Step 6: Final answer
    x = 31,046.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.