Home / 73,166.10-109,673.55-39,815.70

Finding the Fourth Proportional to 73,166.10, 109,673.55 and 39,815.70

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Solution

The fourth proportional to 73,166.10, 109,673.55 and 39,815.70 is: 59,682.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,166.10 : 109,673.55 = 39,815.70 : x
  2. Step 2: Convert to fraction form
    73,166.10/109,673.55 = 39,815.70/x
  3. Step 3: Cross multiply
    73,166.10x = 109,673.55 × 39,815.70
  4. Step 4: Simplify right side
    73,166.10x = 4,366,729,164.74
  5. Step 5: Solve for x
    x = 4,366,729,164.74/73,166.10
  6. Step 6: Final answer
    x = 59,682.41

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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.