Home / 73,315.24-109,971.90-17,911.72

Finding the Fourth Proportional to 73,315.24, 109,971.90 and 17,911.72

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Solution

The fourth proportional to 73,315.24, 109,971.90 and 17,911.72 is: 26,867.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,315.24 : 109,971.90 = 17,911.72 : x
  2. Step 2: Convert to fraction form
    73,315.24/109,971.90 = 17,911.72/x
  3. Step 3: Cross multiply
    73,315.24x = 109,971.90 × 17,911.72
  4. Step 4: Simplify right side
    73,315.24x = 1,969,785,880.67
  5. Step 5: Solve for x
    x = 1,969,785,880.67/73,315.24
  6. Step 6: Final answer
    x = 26,867.35

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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.