Home / 51,276.68-70,761.66-28,615.43

Finding the Fourth Proportional to 51,276.68, 70,761.66 and 28,615.43

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Solution

The fourth proportional to 51,276.68, 70,761.66 and 28,615.43 is: 39,489.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,276.68 : 70,761.66 = 28,615.43 : x
  2. Step 2: Convert to fraction form
    51,276.68/70,761.66 = 28,615.43/x
  3. Step 3: Cross multiply
    51,276.68x = 70,761.66 × 28,615.43
  4. Step 4: Simplify right side
    51,276.68x = 2,024,874,974.61
  5. Step 5: Solve for x
    x = 2,024,874,974.61/51,276.68
  6. Step 6: Final answer
    x = 39,489.20

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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.