Home / 71,299.15-107,053.86-39,770.81

Finding the Fourth Proportional to 71,299.15, 107,053.86 and 39,770.81

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Solution

The fourth proportional to 71,299.15, 107,053.86 and 39,770.81 is: 59,714.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,299.15 : 107,053.86 = 39,770.81 : x
  2. Step 2: Convert to fraction form
    71,299.15/107,053.86 = 39,770.81/x
  3. Step 3: Cross multiply
    71,299.15x = 107,053.86 × 39,770.81
  4. Step 4: Simplify right side
    71,299.15x = 4,257,618,725.83
  5. Step 5: Solve for x
    x = 4,257,618,725.83/71,299.15
  6. Step 6: Final answer
    x = 59,714.86

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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.