Home / 77,165.24-106,490.04-43,172.60

Finding the Fourth Proportional to 77,165.24, 106,490.04 and 43,172.60

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Solution

The fourth proportional to 77,165.24, 106,490.04 and 43,172.60 is: 59,579.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,165.24 : 106,490.04 = 43,172.60 : x
  2. Step 2: Convert to fraction form
    77,165.24/106,490.04 = 43,172.60/x
  3. Step 3: Cross multiply
    77,165.24x = 106,490.04 × 43,172.60
  4. Step 4: Simplify right side
    77,165.24x = 4,597,451,900.90
  5. Step 5: Solve for x
    x = 4,597,451,900.90/77,165.24
  6. Step 6: Final answer
    x = 59,579.31

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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.