Home / 71,165.36-106,748.04-18,574.38

Finding the Fourth Proportional to 71,165.36, 106,748.04 and 18,574.38

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Solution

The fourth proportional to 71,165.36, 106,748.04 and 18,574.38 is: 27,861.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,165.36 : 106,748.04 = 18,574.38 : x
  2. Step 2: Convert to fraction form
    71,165.36/106,748.04 = 18,574.38/x
  3. Step 3: Cross multiply
    71,165.36x = 106,748.04 × 18,574.38
  4. Step 4: Simplify right side
    71,165.36x = 1,982,778,659.22
  5. Step 5: Solve for x
    x = 1,982,778,659.22/71,165.36
  6. Step 6: Final answer
    x = 27,861.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.