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Finding the Fourth Proportional to 79,880.93, 119,734.74 and 39,382.50

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Solution

The fourth proportional to 79,880.93, 119,734.74 and 39,382.50 is: 59,031.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,880.93 : 119,734.74 = 39,382.50 : x
  2. Step 2: Convert to fraction form
    79,880.93/119,734.74 = 39,382.50/x
  3. Step 3: Cross multiply
    79,880.93x = 119,734.74 × 39,382.50
  4. Step 4: Simplify right side
    79,880.93x = 4,715,453,795.84
  5. Step 5: Solve for x
    x = 4,715,453,795.84/79,880.93
  6. Step 6: Final answer
    x = 59,031.03

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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.