Home / 74,157.36-102,336.92-40,165.77

Finding the Fourth Proportional to 74,157.36, 102,336.92 and 40,165.77

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Solution

The fourth proportional to 74,157.36, 102,336.92 and 40,165.77 is: 55,428.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,157.36 : 102,336.92 = 40,165.77 : x
  2. Step 2: Convert to fraction form
    74,157.36/102,336.92 = 40,165.77/x
  3. Step 3: Cross multiply
    74,157.36x = 102,336.92 × 40,165.77
  4. Step 4: Simplify right side
    74,157.36x = 4,110,440,606.64
  5. Step 5: Solve for x
    x = 4,110,440,606.64/74,157.36
  6. Step 6: Final answer
    x = 55,428.62

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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.