Home / 74,387.46-102,655.39-40,396.24

Finding the Fourth Proportional to 74,387.46, 102,655.39 and 40,396.24

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Solution

The fourth proportional to 74,387.46, 102,655.39 and 40,396.24 is: 55,747.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,387.46 : 102,655.39 = 40,396.24 : x
  2. Step 2: Convert to fraction form
    74,387.46/102,655.39 = 40,396.24/x
  3. Step 3: Cross multiply
    74,387.46x = 102,655.39 × 40,396.24
  4. Step 4: Simplify right side
    74,387.46x = 4,146,892,106.72
  5. Step 5: Solve for x
    x = 4,146,892,106.72/74,387.46
  6. Step 6: Final answer
    x = 55,747.19

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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.