Home / 74,182.64-102,372.07-40,191.36

Finding the Fourth Proportional to 74,182.64, 102,372.07 and 40,191.36

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Solution

The fourth proportional to 74,182.64, 102,372.07 and 40,191.36 is: 55,464.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,182.64 : 102,372.07 = 40,191.36 : x
  2. Step 2: Convert to fraction form
    74,182.64/102,372.07 = 40,191.36/x
  3. Step 3: Cross multiply
    74,182.64x = 102,372.07 × 40,191.36
  4. Step 4: Simplify right side
    74,182.64x = 4,114,472,719.32
  5. Step 5: Solve for x
    x = 4,114,472,719.32/74,182.64
  6. Step 6: Final answer
    x = 55,464.09

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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.