Home / 74,179.62-102,369.30-40,645.62

Finding the Fourth Proportional to 74,179.62, 102,369.30 and 40,645.62

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Solution

The fourth proportional to 74,179.62, 102,369.30 and 40,645.62 is: 56,091.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,179.62 : 102,369.30 = 40,645.62 : x
  2. Step 2: Convert to fraction form
    74,179.62/102,369.30 = 40,645.62/x
  3. Step 3: Cross multiply
    74,179.62x = 102,369.30 × 40,645.62
  4. Step 4: Simplify right side
    74,179.62x = 4,160,863,667.47
  5. Step 5: Solve for x
    x = 4,160,863,667.47/74,179.62
  6. Step 6: Final answer
    x = 56,091.74

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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.