Home / 68,570.08-102,818.13-31,109.71

Finding the Fourth Proportional to 68,570.08, 102,818.13 and 31,109.71

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Solution

The fourth proportional to 68,570.08, 102,818.13 and 31,109.71 is: 46,647.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,570.08 : 102,818.13 = 31,109.71 : x
  2. Step 2: Convert to fraction form
    68,570.08/102,818.13 = 31,109.71/x
  3. Step 3: Cross multiply
    68,570.08x = 102,818.13 × 31,109.71
  4. Step 4: Simplify right side
    68,570.08x = 3,198,642,207.04
  5. Step 5: Solve for x
    x = 3,198,642,207.04/68,570.08
  6. Step 6: Final answer
    x = 46,647.79

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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.