Home / 97,857.57-135,043.41-55,424.29

Finding the Fourth Proportional to 97,857.57, 135,043.41 and 55,424.29

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Solution

The fourth proportional to 97,857.57, 135,043.41 and 55,424.29 is: 76,485.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,857.57 : 135,043.41 = 55,424.29 : x
  2. Step 2: Convert to fraction form
    97,857.57/135,043.41 = 55,424.29/x
  3. Step 3: Cross multiply
    97,857.57x = 135,043.41 × 55,424.29
  4. Step 4: Simplify right side
    97,857.57x = 7,484,685,118.43
  5. Step 5: Solve for x
    x = 7,484,685,118.43/97,857.57
  6. Step 6: Final answer
    x = 76,485.50

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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.