Home / 74,110.32-102,271.68-40,118.88

Finding the Fourth Proportional to 74,110.32, 102,271.68 and 40,118.88

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Solution

The fourth proportional to 74,110.32, 102,271.68 and 40,118.88 is: 55,363.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,110.32 : 102,271.68 = 40,118.88 : x
  2. Step 2: Convert to fraction form
    74,110.32/102,271.68 = 40,118.88/x
  3. Step 3: Cross multiply
    74,110.32x = 102,271.68 × 40,118.88
  4. Step 4: Simplify right side
    74,110.32x = 4,103,025,257.32
  5. Step 5: Solve for x
    x = 4,103,025,257.32/74,110.32
  6. Step 6: Final answer
    x = 55,363.75

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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.