Home / 74,118.92-102,284.13-40,127.40

Finding the Fourth Proportional to 74,118.92, 102,284.13 and 40,127.40

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Solution

The fourth proportional to 74,118.92, 102,284.13 and 40,127.40 is: 55,375.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,118.92 : 102,284.13 = 40,127.40 : x
  2. Step 2: Convert to fraction form
    74,118.92/102,284.13 = 40,127.40/x
  3. Step 3: Cross multiply
    74,118.92x = 102,284.13 × 40,127.40
  4. Step 4: Simplify right side
    74,118.92x = 4,104,396,348.64
  5. Step 5: Solve for x
    x = 4,104,396,348.64/74,118.92
  6. Step 6: Final answer
    x = 55,375.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.