Home / 51,310.84-70,838.42-39,115.60

Finding the Fourth Proportional to 51,310.84, 70,838.42 and 39,115.60

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Solution

The fourth proportional to 51,310.84, 70,838.42 and 39,115.60 is: 54,001.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,310.84 : 70,838.42 = 39,115.60 : x
  2. Step 2: Convert to fraction form
    51,310.84/70,838.42 = 39,115.60/x
  3. Step 3: Cross multiply
    51,310.84x = 70,838.42 × 39,115.60
  4. Step 4: Simplify right side
    51,310.84x = 2,770,887,301.35
  5. Step 5: Solve for x
    x = 2,770,887,301.35/51,310.84
  6. Step 6: Final answer
    x = 54,001.99

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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.