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Finding the Fourth Proportional to 50,722, 70,001.59 and 29,212.45

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Solution

The fourth proportional to 50,722, 70,001.59 and 29,212.45 is: 40,316.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,722 : 70,001.59 = 29,212.45 : x
  2. Step 2: Convert to fraction form
    50,722/70,001.59 = 29,212.45/x
  3. Step 3: Cross multiply
    50,722x = 70,001.59 × 29,212.45
  4. Step 4: Simplify right side
    50,722x = 2,044,917,947.80
  5. Step 5: Solve for x
    x = 2,044,917,947.80/50,722
  6. Step 6: Final answer
    x = 40,316.19

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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.