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Finding the Fourth Proportional to 79,935.54, 119,903.10 and 75,063.80

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Solution

The fourth proportional to 79,935.54, 119,903.10 and 75,063.80 is: 112,595.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,935.54 : 119,903.10 = 75,063.80 : x
  2. Step 2: Convert to fraction form
    79,935.54/119,903.10 = 75,063.80/x
  3. Step 3: Cross multiply
    79,935.54x = 119,903.10 × 75,063.80
  4. Step 4: Simplify right side
    79,935.54x = 9,000,382,317.78
  5. Step 5: Solve for x
    x = 9,000,382,317.78/79,935.54
  6. Step 6: Final answer
    x = 112,595.50

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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.