Home / 67,018.66-100,498.46-31,490.09

Finding the Fourth Proportional to 67,018.66, 100,498.46 and 31,490.09

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Solution

The fourth proportional to 67,018.66, 100,498.46 and 31,490.09 is: 47,221.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,018.66 : 100,498.46 = 31,490.09 : x
  2. Step 2: Convert to fraction form
    67,018.66/100,498.46 = 31,490.09/x
  3. Step 3: Cross multiply
    67,018.66x = 100,498.46 × 31,490.09
  4. Step 4: Simplify right side
    67,018.66x = 3,164,705,126.49
  5. Step 5: Solve for x
    x = 3,164,705,126.49/67,018.66
  6. Step 6: Final answer
    x = 47,221.26

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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.