Home / 74,180.30-102,369.11-40,188.69

Finding the Fourth Proportional to 74,180.30, 102,369.11 and 40,188.69

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Solution

The fourth proportional to 74,180.30, 102,369.11 and 40,188.69 is: 55,460.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,180.30 : 102,369.11 = 40,188.69 : x
  2. Step 2: Convert to fraction form
    74,180.30/102,369.11 = 40,188.69/x
  3. Step 3: Cross multiply
    74,180.30x = 102,369.11 × 40,188.69
  4. Step 4: Simplify right side
    74,180.30x = 4,114,080,226.42
  5. Step 5: Solve for x
    x = 4,114,080,226.42/74,180.30
  6. Step 6: Final answer
    x = 55,460.55

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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.