Home / 74,190.64-102,383.04-40,655.92

Finding the Fourth Proportional to 74,190.64, 102,383.04 and 40,655.92

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Solution

The fourth proportional to 74,190.64, 102,383.04 and 40,655.92 is: 56,105.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,190.64 : 102,383.04 = 40,655.92 : x
  2. Step 2: Convert to fraction form
    74,190.64/102,383.04 = 40,655.92/x
  3. Step 3: Cross multiply
    74,190.64x = 102,383.04 × 40,655.92
  4. Step 4: Simplify right side
    74,190.64x = 4,162,476,683.60
  5. Step 5: Solve for x
    x = 4,162,476,683.60/74,190.64
  6. Step 6: Final answer
    x = 56,105.15

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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.