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Finding the Fourth Proportional to 51,353.33, 70,865.01 and 28,687.82

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Solution

The fourth proportional to 51,353.33, 70,865.01 and 28,687.82 is: 39,587.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,353.33 : 70,865.01 = 28,687.82 : x
  2. Step 2: Convert to fraction form
    51,353.33/70,865.01 = 28,687.82/x
  3. Step 3: Cross multiply
    51,353.33x = 70,865.01 × 28,687.82
  4. Step 4: Simplify right side
    51,353.33x = 2,032,962,296.85
  5. Step 5: Solve for x
    x = 2,032,962,296.85/51,353.33
  6. Step 6: Final answer
    x = 39,587.74

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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.