Home / 74,841.39-112,310.73-39,805.65

Finding the Fourth Proportional to 74,841.39, 112,310.73 and 39,805.65

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Solution

The fourth proportional to 74,841.39, 112,310.73 and 39,805.65 is: 59,734.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,841.39 : 112,310.73 = 39,805.65 : x
  2. Step 2: Convert to fraction form
    74,841.39/112,310.73 = 39,805.65/x
  3. Step 3: Cross multiply
    74,841.39x = 112,310.73 × 39,805.65
  4. Step 4: Simplify right side
    74,841.39x = 4,470,601,609.62
  5. Step 5: Solve for x
    x = 4,470,601,609.62/74,841.39
  6. Step 6: Final answer
    x = 59,734.35

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1.5x scale

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.