Home / 71,849.69-107,869.91-61,386.92

Finding the Fourth Proportional to 71,849.69, 107,869.91 and 61,386.92

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Solution

The fourth proportional to 71,849.69, 107,869.91 and 61,386.92 is: 92,161.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,849.69 : 107,869.91 = 61,386.92 : x
  2. Step 2: Convert to fraction form
    71,849.69/107,869.91 = 61,386.92/x
  3. Step 3: Cross multiply
    71,849.69x = 107,869.91 × 61,386.92
  4. Step 4: Simplify right side
    71,849.69x = 6,621,801,535.58
  5. Step 5: Solve for x
    x = 6,621,801,535.58/71,849.69
  6. Step 6: Final answer
    x = 92,161.87

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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.